Alvin is 13 years younger than Elga. The sum of their ages is 87. What’s Elgar’s age?

Answers

Answer 1

Answer:

87-13 = 74

Step-by-step explanation:


Related Questions

please help!!asap!!!

Answers

Answer:

60

Step-by-step explanation:

The triangle is equilateral, so it is also equiangular.

3x = 180

x = 60

Answer: 60

It’s an equilateral triangle
All angles add up to 180

180/3

=60

4. BOLD all polynomials that are in standard fom.
Help!!! Easy points

Answers

Answer:

b and d

Step-by-step explanation:

on both of those polinomials the terms are in order from the higest degree towards thhe lowest degree

25 = 6x - 5

what does x =

Answers

Answer:

x = 5

Step-by-step explanation:

25 = 6x - 5 (add 5 on both sides)

+5         +5

30 = 6x (divide by 6 on both sides)

5 = x

Hope this helps ya!!

8m + 5 + 13m – 5 = 42. What is the value of M?

Answers

Answer:

m=2

Step-by-step explanation:

that is the answer for m

1: 4/15÷2/3



2: Andy used1/6of a can of paint to cover1/2of a wall.

How much of the can of paint did Andy use to paint the whole wall?

Express your answer in simplest form.




1/3

1/8

1/12

1/2
3: A company bought a total of 4 /12feet of cable to connect 3 computers to the wall outlet. Each computer needs the same amount of cable.

How many feet of cable are needed to connect each computer?

Express your answer in simplest form.


1 1/3ft

1/2ft

1 1/2ft

1/3ft

4:Jenny has a 57 3/4kg bag of dog food. Her dog eats 5 1/4kg of food each week.



How many weeks will the bag of dog food last?




10 3/4 weeks

11 weeks

18 3/8 weeks

63 weeks

FIRST ONE TO AWNSER GET BRAIN AND YOU GET 50 POINTS
plz help)

Answers

Answer:

in comments under the question

Plzzzzz help right answer gets a brainly!

Answers

Answer:

25

Step-by-step explanation:

Answer:

11 its 11 its 11 its 11 its 11 its 11

There is a 0.9989 probability that a randomly selected 29-year-old male lives through the year. A life insurance company charges $197 for insuring that the male will live through the year. If the male does not survive the year, the policy pays out $100,000 as a death benefit.

Required:
a. From the perspective of the 29-year-old male, what are the monetary values corresponding to the two events of surviving the year and not surviving?
b. If the 29-year-old male purchases the policy, what is his expected value?
c. Can the insurance company expect to make a profit from many such policies? Why?

Answers

a. Surviving the year: $197; Not surviving the year: $100,000

b. Expected value: $306.78

c. The insurance company can expect to make $86.49 in profit per policy.

We have,

a.

From the perspective of the 29-year-old male:

Surviving the year:

The monetary value is the cost of the insurance premium, which is $197.

Not surviving the year:

The monetary value is the death benefit paid out by the policy, which is $100,000.

b.

To calculate the expected value for the 29-year-old male, multiply the probability of each event by its corresponding monetary value and sum them up:

Expected Value = (Probability of Surviving * Monetary Value of Surviving) + (Probability of Not Surviving * Monetary Value of Not Surviving)

= (0.9989 * $197) + (0.0011 * $100,000)

= $306.78

c.

Expected Premium Revenue

= Probability of Surviving * Premium Amount

= 0.9989 * $197

≈ $196.49

Expected Payout

= Probability of Not Surviving * Death Benefit

= 0.0011 * $100,000

≈ $110

Profitability

= Expected Premium Revenue - Expected Payout

= $196.49 - $110

≈ $86.49

Since the expected premium revenue exceeds the expected payout, the insurance company can expect to make a profit from many such policies.

In this scenario, the insurance company can expect to make $86.49 in profit per policy.

Therefore,

a. Surviving the year: $197; Not surviving the year: $100,000

b. Expected value: $306.78

c. The insurance company can expect to make $86.49 in profit per policy.

Learn more about probability here:

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a. From the perspective of the 29-year-old male:

Surviving the year: The cost of insurance is $197.

Not surviving the year: The policy pays out a death benefit of $100,000.

b. The 29-year-old male's expected value is -$86.8013, indicating a potential loss.

c. Yes, the insurance company can expect to make a profit. The expected value is negative, meaning the company collects more in premiums than it pays out on average.

a. From the perspective of the 29-year-old male:

Surviving the year: The cost of insuring that the male will live through the year is $197.

Not surviving the year: The policy pays out a death benefit of $100,000.

b. To calculate the expected value for the 29-year-old male, we need to consider the probabilities of each event and their corresponding monetary values.

Expected Value = (Probability of surviving * Monetary value of surviving) + (Probability of not surviving * Monetary value of not surviving)

Probability of surviving = 0.9989

Monetary value of surviving = -$197 (since this represents the cost of insurance)

Probability of not surviving = 1 - Probability of surviving = 1 - 0.9989 = 0.0011

Monetary value of not surviving = $100,000

Expected Value = (0.9989 * -$197) + (0.0011 * $100,000)

Expected Value = -$196.8013 + $110

Expected Value = -$86.8013

Therefore, the expected value for the 29-year-old male is approximately -$86.8013.

c. The insurance company can expect to make a profit from many such policies because the expected value is negative (-$86.8013). The cost of insuring the male is $197, but the expected value is significantly less. This means that on average, the insurance company will collect more in premiums than it pays out in claims, resulting in a profit. The small probability of not surviving the year and the high payout of $100,000 contribute to the insurance company's ability to make a profit by spreading the risk among many policyholders.

for such more question on expected value

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what is 1/2 plus 1/3

Answers

Answer:

1/2 + 1/3 = 5/6

Step-by-step explanation:

1/2 + 1/3 = 5/6

Answer:

5/6

Step-by-step explanation:

multiply 1/2 by 2 and then multiply 1/3 by 2 to get 5/6

Plz help meeeeeeee plzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

b, c and d

Step-by-step explanation:

Help needed asap!!!
Log_4 (x-5)=3

Answers

Distribute the 4. So
4x-20=3
+20 +20
——————-
4x=23
— —
4. 4

X= 5 3/4 WHICH ALSO EQUALS 5.75

If -y-2x^3=Y^2 then find D^2y/dx^2 at the point (-1,-2) in simplest form
^^ the main problem i am having is when I have to use the quotient rule

Answers

Answer:

[tex]\frac{d^2y}{dx^2} = \frac{-4}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Algebra I

Factoring

Calculus

Implicit Differentiation

The derivative of a constant is equal to 0

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Product Rule: [tex]\frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]

Chain Rule: [tex]\frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Quotient Rule: [tex]\frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]

Step-by-step explanation:

Step 1: Define

-y - 2x³ = y²

Rate of change of tangent line at point (-1, -2)

Step 2: Differentiate Pt. 1

Find 1st Derivative

Implicit Differentiation [Basic Power Rule]:                                                  [tex]-y'-6x^2=2yy'[/tex][Algebra] Isolate y' terms:                                                                              [tex]-6x^2=2yy'+y'[/tex][Algebra] Factor y':                                                                                       [tex]-6x^2=y'(2y+1)[/tex][Algebra] Isolate y':                                                                                         [tex]\frac{-6x^2}{(2y+1)}=y'[/tex][Algebra] Rewrite:                                                                                           [tex]y' = \frac{-6x^2}{(2y+1)}[/tex]

Step 3: Differentiate Pt. 2

Find 2nd Derivative

Differentiate [Quotient Rule/Basic Power Rule]:                                          [tex]y'' = \frac{-12x(2y+1)+6x^2(2y')}{(2y+1)^2}[/tex][Derivative] Simplify:                                                                                       [tex]y'' = \frac{-24xy-12x+12x^2y'}{(2y+1)^2}[/tex][Derivative] Back-Substitute y':                                                                     [tex]y'' = \frac{-24xy-12x+12x^2(\frac{-6x^2}{2y+1} )}{(2y+1)^2}[/tex][Derivative] Simplify:                                                                                      [tex]y'' = \frac{-24xy-12x-\frac{72x^4}{2y+1} }{(2y+1)^2}[/tex]

Step 4: Find Slope at Given Point

[Algebra] Substitute in x and y:                                                                     [tex]y''(-1,-2) = \frac{-24(-1)(-2)-12(-1)-\frac{72(-1)^4}{2(-2)+1} }{(2(-2)+1)^2}[/tex][Pre-Algebra] Exponents:                                                                                      [tex]y''(-1,-2) = \frac{-24(-1)(-2)-12(-1)-\frac{72(1)}{2(-2)+1} }{(2(-2)+1)^2}[/tex][Pre-Algebra] Multiply:                                                                                   [tex]y''(-1,-2) = \frac{-48+12-\frac{72}{-4+1} }{(-4+1)^2}[/tex][Pre-Algebra] Add:                                                                                         [tex]y''(-1,-2) = \frac{-36-\frac{72}{-3} }{(-3)^2}[/tex][Pre-Algebra] Exponents:                                                                               [tex]y''(-1,-2) = \frac{-36-\frac{72}{-3} }{9}[/tex][Pre-Algebra] Divide:                                                                                      [tex]y''(-1,-2) = \frac{-36+24 }{9}[/tex][Pre-Algebra] Add:                                                                                          [tex]y''(-1,-2) = \frac{-12}{9}[/tex][Pre-Algebra] Simplify:                                                                                    [tex]y''(-1,-2) = \frac{-4}{3}[/tex]

Please help!! I will give correct answer brainelest! 15 points!

Answers

Minimum is 40

First quartile is 43

Median is 61

Third quartile is 65

Maximum is 97

Solve the equation.
4+ 14 = – 2(7x-9)

Answers

Answer:

-63

Step-by-step explanation:

Choose whether the expression is a result of multiplying
conjugates together, squaring binomials, or neither.
25c^2 + 55c + 30
-multiplying conjugates
-squaring binomials
-neither
-both

Answers

Answer:

neither

Step-by-step explanation:

Take out 5 as a common factor. It will be easier to look at.

5(5c^2 + 11c + 6)

5(5C +6 )(c + 1 )

Now you can put the 5 inside.

(25c + 30)(c + 1) is one answer.

(5c + 6)(5c + 5) is another.

The answer is multiplying binomials. There is nothing that that is squared and the answers are not conjugates. They are two binomials multiplied together.

Rosetta owns a wedding photography business. For each wedding, she charges $100 plus $50 per hour of work. A linear equation that expresses the total amount of money Rosetta earns per wedding is y= 50x+100. What are the independent and dependent variables? What is the y-intercept and the slope?

a. The independent variable (z) is the amount of time Rosetta shoots photos. The dependent variable (y) is the amount, in dollars, Rosetta earns for a wedding.
b. Rosetta charges a one-time fee of $100 (this is when 2-0), so the y-intercept is 100. Rosetta earns $50 for each hour she works, so the slope is 50.
c. The independent variable (x) is the amount in dollars, Rosetta earns for a wedding. The dependent variable (y) is the amount of time Rosetta shoots photos.
d. Rosetta charges a one-time fee of $100 (this is when : 0), so they intercept is 100. Rosetta earns $50 for each hour she works, so the slope is 50.
e. The independent variable(x) is the amount of time Rosetta shoots photos.

Answers

The options are not clear enough, so i have attached it.

Answer:

A: The independent variable (x) is the amount of time Rosetta shoots photos. The dependent variable (y) is the amount, in dollars, Rosetta earns for a wedding.

Rosetta charges a one-time fee of $100 (this is when x = 0), so the y-intercept is 100. Rosetta earns $50 for each hour she works, so the slope is 50

Step-by-step explanation:

We are given the equation of total amount of money Rosetta earns per wedding as;

y = 50x + 100

Where x is number of hours.

Now, the independent variable will be x because it doesn't depend on any other variable whereas the dependent variable will be y because it depends on how many hours which is x.

Now, the y-intercept occurs when x = 0.

Thus;

y = 50(0) + 100

y = 100

Thus,she charges a one time fee of $100, so the y-intercept = $100 at x = 0.

From slope intercept equation which is;

y = mx + c and comparing with y = 50x + 100, where m is the slope, we can see that m = 50.

Thus, since she earns $50 per hour, the slope is 50.

The correct option is Option A.

Please Help!! 10 points!!

Answers

Answer: This is true. For example, 3 is a multiple of 3. And zero is not a multiple of 3. When added together, 3 is still a multiple of 3.

Step-by-step explanation:

find the elements in the inverse

Answers

Answer:

when e acts on itself on the left or right

Answer:

The answer is right.

Step-by-step explanation:

Please rate and like the answer.

Hope this helped!

Explain how to get the answer please

Answers

Answer:

y=8.50x+0.25

Step-by-step explanation:

She/he starts off with 8.50 and throughout the week she can earn 0.25 per joke. We don't know how many times a joke is made so it would be an x.

Answer:     b  8.50+0.25 divoide it by 0.25 th3n do the eqathion back words

Evaluate the expression when y=-7.

Answers

Answer:

20

-7 squared becomes 49, 4 times -7 is -28

49 plus -28 equals 21 and minus one is 20

Answer
Y= -12

Explanation:
49+4y=2
4y=1-49
4y=-48
Y -48/4
Y=-12

LuAnn is playing a math game. She chooses three cards. The value of each of her cards is
shown.
• First card: -12
• Second card: 3
• Third card: -5
What is the sum of the values of LuAnn’s three cards?
Record your answer and fill in the bubbles on your answer document. Be sure to use the
correct place value.

Answers

The sum of her three cards is -14

-12 + 3 = -9
-9 - 5 = -14

Complete the inequality statement.
90 in. ___ 2 3/4 yd
A. >
B. <
C. =

Answers

Answer:

b

Step-by-step explanation:

90 inches is 2 1/2 yards

Solve for q.
9/18 = 5
q =

Answers

Answer: 90

Step-by-step explanation: Multiply each side by 18.

q is 90 :D :D :D Hope this helps

Each week as part of her workout, Monica walks 0.5 mile, runs 1.6 miles, and then walks 0.75 mile.
How many total miles will Monica walk and run in a year?

Answers

Answer:run:83.43 miles

Walk:39.11 miles

Step-by-step explanation:

There are 52.143 weeks in a year;

So each week she runs 1.6 miles=1.6*52.143=83.43 miles

Walks 0.75 miles=0.75*52.143=39.11 miles

A farmer has 624 eggs. He stores them in boxes of 12. How many boxes will he fill?

Answers

624/12 = 52
He will fill 52 boxes

which one is true about this ?

Answers

Answer:

b is the correct answer I think

Try guessing b?
sorry if it isn’t correct.

is the incenter always, never, or sometimes inside the triangle

Answers

Answer:

Always

Step-by-step explanation:

Answer: Always

the incenter is always inside the triangle

Step-by-step explanation:

When finding the least common denominator you have to multiply the number by other factors such as 1,2,3 etc. true or false help please

Answers

Answer:

True

Step-by-step explanation:

One way to find the least common multiple of two or more numbers is to first multiply each by 1, 2, 3, etc.

On a blueprint, the length of a wall is 5 centimeters. If the actual length of the wall is 15 feet, what is the scale of the blueprint

Answers

Answer:

1 cm = 3 feet.

Step-by-step explanation:

Divide 15 by 5 to get 3; on the blueprint, every centimeter represents 3 feet.

The scale of scale factor of the blueprint is 1 cm = 3 feet.

What is a scale factor?

The scale factor defines a variable in a ratio of two different measurements.

Sometimes drawings of large models are represented in a scale factor of a smaller unit.

Given, On a blueprint, the length of a wall is 5 centimeters and the actual length of the wall is 15 feet.

Therefore, The scale factor of the blueprint is,

= (5/15).

= 1/5.

So, It can be written as 1 cm = 3 feet.

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Translate the given statement into an algebraic inequality or compound inequality:

To avoid an additional charge, the sum of the length, l, width, w, and depth, d, of a piece of luggage to be checked on a commercial airline can be at most 61 inches.



a.

l + w + d greater-than 61

b.

l + w + d less-than 61

c.

l + w + d greater-than-or-equal-to 61

d.

l + w + d less-than-or-equal-to 61

Answers

Answer:

[tex]l + w + d \leq 61[/tex]

Step-by-step explanation:

Given

Sum of l, w and d be at most 61

Required

Write as inequality

First, we need to determine the sum of l, w and d

[tex]Sum = l + w + d[/tex]

Next, we determine the type of inequality.

At most 61 means less than or equal to 61

So, the expression becomes:

[tex]Sum \leq 61[/tex]

Substitute value for Sum

[tex]l + w + d \leq 61[/tex]

Answer:

D

Step-by-step explanation: Ede 2021

30 POINTS, BRAINLIEST, PLEASE HAALLPPP TT^TT
PLEASE don`t respond without an answer!
A basketball is thrown upward from a height of 1.8 m at a velocity of 12 m/s. How long until it reaches the ground?
(Recall: h(t)=-4.9t^2-v_0 t+h_0, where v_0 is initial velocity and h_0 is initial height.)

Answers

It's a pretty simple suvat linear projectile motion question, using the following equation and plugging in your values it's a pretty trivial calculation.

V^2=U^2+2*a*x

V=0 (as it is at max height)

U=30ms^-1 (initial speed)

a=-g /-9.8ms^-2 (as it is moving against gravity)

x is the variable you want to calculate (height)

0=30^2+2*(-9.8)*x

x=-30^2/2*-9.8

x=45.92m

With these questions it's best to just memorise the suvat equations and either draw or imagine the actions involved, that was you can tell what piece of given information translates to which variable. For example; I know that I am looking for max height, so when a ball is at its highest point, it can't be moving up anymore (thus V = 0). I also know that it is moving upwards against gravity, so gravity will be decelerating the ball (therefore a=-g). In a paper, it may as for assumptions with this question, a good answer would be no air resistance or movement due to any other external forces. I hope I helped :)
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