Sandra saves 12% of her salary for retirement. This year her salary was $3,000 more than in the previous year, and she saved $4,200. What was her salary in the previous year?write an equatio____.sandre's salary in the previous year was___

Answers

Answer 1

Answer:

44

Step-by-step explanation:


Related Questions

if two cards are chosen from a pack of 52 play cards at a time with replacement , what is the probability of getting one heart?​

Answers

28%. Boom. :) this is the chance of getting one red heart

Sydney brings $200 to the mall. She buys a $ 70 watch and some shirts for $40 each.

Which inequality represents the situation?

Also determine how much money Sydney has left after she buys 2 shirts?

Question 2 options:

40x+70≤200, 50


40x+70<200, 120


110x>200, 128


40x+70≥200, 130

Answers

Answer:

A

Step-by-step explanation:


Calculate: Find the perimeter of a triangle with sides 11 inches, 5 inches, and 13 inches. Show your work.

Answers

Answer:

29

Step-by-step explanation:

P=a+b+c=11+5+13=29

What is the equation of the line that is perpendicular to y=-3x+1 that passes through the point (9,0)?
y=1/3x-3
y=-1/3x+3
y=3x+9
y=-3x+3

Answers

Answer:

Step-by-step explanation:

the correct answer of the question is y=x/3-3 b.c

m1.m2 = -1 But m1=-3

so -3.m2=-1

-3.m2/-3=-1/-3

m2=1/3 therefore

Y=1/3x-3

How would you explain 0 (prime and composite wise)?

Answers

Answer: 0 = NOTHING

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

A and B

Step-by-step explanation:

A and c sorry if wrong

Triangle XYZ has vertices X(1, –1), Y(3, 4), and Z(5, –1). Nikko rotated the triangle 90° counterclockwise about the origin. What is the correct set of image points for triangle X’Y’Z’?

X’(1, 1), Y’(-4, 3), Z’(1, 5)
X’(1, 1), Y’(–3, –4), Z’(–1, –5)
X’(–1, 1), Y’(–3, –4), Z’(–5, 1)
X’(–1, –1),Y’(4, –3), Z’(–1, –5)

Answers

Answer:

When a figure is rotated counterclockwise about the origin, its original coordinates of point P (x,y) will now be positioned as P' (-y,x).

X (1,-1) --> X' (1,1)

Y (3,4) --> Y' (-4,3)

Z (5,-1) --> Z' (1,5)

The correct set of image points for triangle X'Y'Z' is X'(1,1), Y'(-4,3), and Z'(1,5).

Step-by-step explanation:

Triangle XYZ is rotated 90° counterclockwise, the new coordinate is X'(1, 1), Y'(-4, 4) and Z'(1, -5)

Transformation

Transformation is the movement of a point from its initial location to a new location. Types of transformation are translation, reflection, rotation and dilation.

If a point A(x, y) is rotated 90° counterclockwise the new point is A'(-y, x).

Triangle XYZ is rotated 90° counterclockwise, the new coordinate is X'(1, 1), Y'(-4, 4) and Z'(1, -5)

Find out more on Transformation at: https://brainly.com/question/26092237

Given: 7X/2 < 5. Choose the solution set. {x | x < 10/7} {x | x >10/7 } {x | x < 35/2} {x | x > 35/2}

Answers

Answer:

{x | x < 10/7}

Step-by-step explanation:


What is the resulting integral?

Answers

Answer:

[tex]\displaystyle \int {\frac{2}{(1 + \sqrt{x})^5}} \, dx = \frac{-(4\sqrt{x} + 1)}{3(\sqrt{x} + 1)^4} + C[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Algebra I

Exponential Rule [Root Rewrite]:                                                                   [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]Exponential Rule [Rewrite]:                                                                            [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]

Calculus

Derivatives

Derivative Notation

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Antiderivatives - Integrals

Integration Constant C

U-Substitution

U-Solve

Integration Rule [Reverse Power Rule]:                                                               [tex]\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C[/tex]

Integration Property [Multiplied Constant]:                                                         [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]

Integration Property [Addition/Subtraction]:                                                       [tex]\displaystyle \int {[f(x) \pm g(x)]} \, dx = \int {f(x)} \, dx \pm \int {g(x)} \, dx[/tex]

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \int {\frac{2}{(1 + \sqrt{x})^5}} \, dx[/tex]

Step 2: Identify Variables

Find the variables u-solve using u-substitution.

U-Substitution

[tex]\displaystyle u = 1 + \sqrt{x}[/tex]

[tex]\displaystyle du = \frac{1}{2\sqrt{x}}dx[/tex]

U-Solve

[tex]\displaystyle x = (u - 1)^2[/tex]

[tex]\displaystyle dx = 2\sqrt{x}du[/tex]

Step 3: Integration

[Integral] Rewrite [Integration Property - Multiplied Constant]:                 [tex]\displaystyle 2\int {\frac{1}{(1 + \sqrt{x})^5}} \, dx[/tex][Integral] U-Solve:                                                                                         [tex]\displaystyle 2\int {\frac{1}{(1 + \sqrt{(u - 1)^2})^5}} \, 2\sqrt{x}du[/tex][Integral] Simplify:                                                                                         [tex]\displaystyle 2\int {\frac{2\sqrt{x}}{u^5}} \, du[/tex][Integral] Rewrite [Integration Property - Multiplied Constant]:                 [tex]\displaystyle 4\int {\frac{\sqrt{x}}{u^5}} \, du[/tex][Integral] U-Solve:                                                                                         [tex]\displaystyle 4\int {\frac{\sqrt{(u - 1)^2}}{u^5}} \, du[/tex][Integral] Simplify:                                                                                         [tex]\displaystyle 4\int {\frac{u - 1}{u^5}} \, du[/tex][Integral] Rewrite [Integration Property - Subtraction]:                               [tex]\displaystyle 4[\int {\frac{u}{u^5}} \, du - \int {\frac{1}{u^5}} \, du][/tex][Integrals] Simplify:                                                                                       [tex]\displaystyle 4[\int {\frac{1}{u^4}} \, du - \int {\frac{1}{u^5}} \, du][/tex][Integrals] Rewrite [Exponential Rule - Rewrite]:                                         [tex]\displaystyle 4[\int {u^{-4}} \, du - \int {u^{-5}} \, du][/tex][Integrals] Reverse Power Rule:                                                                   [tex]\displaystyle 4[\frac{u^{-3}}{-3} - \frac{u^{-4}}{-4}] + C[/tex]Rewrite [Exponential Rule - Rewrite]:                                                           [tex]\displaystyle 4[\frac{-1}{3u^3} + \frac{1}{4u^4}] + C[/tex][Brackets] Multiply:                                                                                       [tex]\displaystyle \frac{-4}{3u^3} + \frac{4}{4u^4} + C[/tex]Back-Substitute:                                                                                             [tex]\displaystyle \frac{-4}{3(1 + \sqrt{x})^3} + \frac{4}{4(1 + \sqrt{x})^4} + C[/tex]Combine:                                                                                                       [tex]\displaystyle \frac{-(4\sqrt{x} + 1)}{3(\sqrt{x} + 1)^4} + C[/tex]

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Integration

Book: College Calculus 10e

ill give you brainliest

Answers

Answer:

376.8 ft²

Step-by-step explanation:

that is the correct answer for you friend

How do you find out if a number is an integer or not?

Answers

Answer:

Integers are any whole number negative or positive

Step-by-step explanation:

plz help. I Need help with it

Answers

Answer:

O that easy just flip the sign for example - becomes + becomes-

this is an is simple trick I learn hope it helps you.

Step-by-step explanation:

so k goes to -3 j goes to -2

Let f(x)=−|x−3|+3 and g(x)=1/2x−3. Graph the functions in the same coordinate plane.
What are the solutions to f(x)=g(x)?

Enter your answers in the boxes from smallest to largest.

x=_ and x=_

Answers

Answer:

x = 6 and -6

Step-by-step explanation:

Answer:

the answer is: 6 and -6. hope this helps!!

Step-by-step explanation:

5 + (1/7)b = -2
what is b?

Answers

Answer: b=-1

Step-by-step explanation:

[tex]5+\frac{1}{7}b=-2\\\\5+\frac{1}{7}b=-2\\\\\frac{1}{7}b=-7\\\\b=-1[/tex]

hello i hope you are having a nice day can somebody help me with this question thanks

Answers

I have a little rhyme for you to remember how to calculate the area of a trapezium:

Half the sum of the parallel lines,
Times the distance between them,
That is how you work out,
The area of a trapezium!

Ok, now apply the rhyme to the question!

1) Half the sum of the parallel lines - (7.5+2.5) / 2 = 5
2) Times the distance between them - 5 x 2.5 =12.5

The answer is 12.5

Answer:

12.25 un

Step-by-step explanation:

-the formula for the area of a triangle is A=(1/2)bh or Area=(1/2)×Base×Height

to find the base you need to take 7.5 and subtract 2.5 the divide in half for each base of the triangles to get 2.5 for the bases.

then take your formula and multiply:

0.5×2.5×2.5=3.125×2=6.25 and you get the area of the triangles.

then do the area of the center square which is:

2.5×2.5=6 for the center

then add:

A=6.25+6=12.25

The question is in this link (please fast):

Answers

Answer:

a) 190

b)-189

Step-by-step explanation:

4a)

-2y+7(4+8y)=

-2y+(7·4)+(7·8y)=

-2y+28+(7·8y)=

-2y+28+(7·24)

-2y+28+168=

-6+28+168=

22+168 solve

4b)

-5w-4(6t+5)

-5w-4(36+5)

-5w-(4·41)

-5w-164

-25-164 solve


How many even numbers less than 1000 can be formed from the given
digits 0,2,3,5 if repetition is not allowed.
(a) 16
(b) 24
(c) 6
(d) none of these

Answers

Answer:

non of them it should be 32 iʻm pretty sure

Step-by-step explanation:

Indicate whether the function represents an exponential growth or decay.

Answers

Answer:

1) decay

2) growth

3) growth

Step-by-step explanation:

A generic exponential function can be written as:

f(x) = A*(r)^x

Where:

A is the initial amount of something.

r is the rate of growth.

x is the variable, usually, represents time.

if r > 1, we have an exponential growth.

if r < 1, we have an exponential decay.

1) f(x) = (3/4)^x

in this case we have:

A = 1

r = (3/4) = 0.75

Clearly, r < 1.

Then this is an exponential decay.

2) f(x) = (1/6)*4^x

In this case we have:

A = (1/6)

r = 4

Here we have r > 1.

Then this is an exponential growth.

3) f(x) = (1/4)*(5/2)^x

in this case we have:

A = 1/4

r = 5/2 = 2.5

here we have r > 1, then this is an exponential growth.

Restaurants often slip takeout menus under Rosa's apartment door. So far, Rosa has collected 15 menus, including 5 for Indian food. Considering this data, how many of the next 18 menus slipped under Rosa's door should you expect to be from Indian restaurants?​

Answers

Answer:

https://e-eduanswers.com/mathematics/question21901004

Step-by-step explanation:

the answer is in that website

what is the answer to 1\2÷3​

Answers

Answer:

1/6

Step-by-step explanation:

1/2÷3

1/2×1/3

1×1/2×3

1/2×3

1/6

the answer is i have no freaking idea

Where would it go I know how to do X axis but not Y

Answers

Answer: (-1,2) and (2,2) Make sure to see explanation!

Step-by-step explanation:

Well you need to remember the Y reflection rule!

To reflect over the Y axis you must do this:

Take the points in this case

(1,2) and (-2,2)

And you need to use the equation (x,y) --> (-x,y)

So the new points you NEED TO GRAPH ARE

(-1,2) and (2,2)

Hope this helped!

Answer: (-1,2) and (2,2)

Step-by-step explanation:

reflection over the y axis, take the point (x,y) and change the sign of the X-value (-x,y). When You reflect over the y-axis, the y remains the same.

point (1,2) would become (-1,2) reflected over the Y

and (-2,2) would become (2,2)

Identifica el cuadrante en el cual se encuentra el ángulo 2.200

Answers

Answer:your

Step-by-step explanation:

mom

Identify the quadrant in which the angle is 2,200 what

What is 6 less than a number t is 7?

Answers

Answer:

t-6=7

Step-by-step explanation:

Answer:

6-t=7

Step-by-step explanation:

Triangle A'B'C'is the result of reflecting triangle ABC across the line l

Choose all answers that apply

a. BC and B'C' are both perpendicular to the y-axis

b. <B and <B' have the same measures

c. The perimeters of ABC and A'B'C' are the same
D. None of the above

Answers

9514 1404 393

Answer:

  b, c

Step-by-step explanation:

Reflection across a line is a "rigid" transformation, so linear measures and angle measures remain unchanged. (b and c are true statements)

Reflection across a line skew to the y-axis will mean that any segment originally perpendicular to the y-axis will not be after the reflection. ('a' is not a true statement)

what are the steps on finding common denominators. PLEASE HELP

Answers

Step-by-step explanation:

to find a common denominator, you have to find a number that "works" with every other number.

for example, say you have

2/4 and 8/12

First you need to find the common factor between 4 and 12, so list all your fours

4, 8, 12, 16, 20

Now list all your twelves

12, 24, 36, 48, 60

to find the common factor you look at both your list of numbers and find one that's the same, sometimes it takes a long list of numbers to find the common factor, but you will run into one.

So by looking at our list we see that 4 and 12 share the common factor of 12. but since 8/12 already has a denominator of 12, we are going to leave it alone.

now think about what you would multiply 4 by, to get to 12. The answer is

4 x 3 = 12

to make the numerator correct, you multiply it by the same number you did 4, so since your faction is 2/4 you should do 2 x 3 = 6

now you have your answer,

2/4 and 8/12 turns into

6/12 and 8/12

and that's how you find it, let me know if you have questions :)

An object with a mass of 66.5 kg accelerates 22.3 m/s when
an unknown force is applied to it. What is the amount of the
force?

Answers

Answer:

Step-by-step explanation:

F=ma

F=66.5kg(22.3m/s)

F=1482.95N

someone plz help no links stg

Answers

vertex: (0,-9)
axis of symmetry: x=0
i don’t have the graph but
left x-intercept: (-3,0)
right x intercept: (3,0) (there’s two x intercepts)
the domain is the set of all real numbers
the range is -9, so i think it’s greater than?

Which equation describes the function in the table below?

Answers

Answer:

A

Step-by-step explanation:

So, first we have to eliminate answers, let us check A first. If we simplify this equation, it's basically saying Y is equal to 1.3 times X plus 10. So, 0 x 1.3 = 0 plus 10 = 10. Now we check the rest of the table. 5 x 1.3 = 6.5 + 10 = 16.5. 10 x 1.3 + 10 = 23. 15 x 1.3 + 10 = 29.5,  and 20 x 1.3 = 26 + 10= 36. The math matches with the table so we're done.

(this is a practice question)​

Answers

Answer:

<GHI = 135 degrees

Step-by-step explanation:

(3x + 12) + (x + 4) = 180

4x + 16 = 180

4x + 16 - 16 = 4x

180 - 16 = 164

4x = 164

4x / 4 = x

164 / 4 = 41

x = 41

3 * 41 + 12

3 * 41 = 123

123 + 12 = 135

Which of the following best describes the difference between simple and compound interest?

Simple interest is easier to calculate than compound interest.

Simple interest earns interest on the previous interest earned only.

Compound interest earns interest on the principal plus any previous interest earned.

Compound interest earns interest on the principal only.

Answers

Answer:

Compound interest earns interest on the principal plus any previous interest earned.

Step-by-step explanation:

compound interest gets its name because the interest keeps on 'compounding' which means earning interest on interest

The correct best describes the difference between simple and compound interest is,

⇒ Compound interest earns interest on the principal plus any previous interest earned.

Option 3 is true.

What is Simple interest?

A quick and easy method of calculating the interest charge on a loan is called a Simple interest.

We have to given that;

To defined best describes the difference between simple and compound interest.

Now, We know that;

Compound interest pays interest on your previous balance plus your previous earned interest; simple interest pays interest only on your original balance.

Hence, The correct best describes the difference between simple and compound interest is,

⇒ Compound interest earns interest on the principal plus any previous interest earned.

Learn more about the Interest visit:

https://brainly.com/question/7639734

#SPJ3

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