Substitution
3x+y=-8, -8x-3y=21
PLEASE HELPP ME<3

Answers

Answer 1

Answer:x=92

y=−255

Step-by-step explanation:


Related Questions

40% of what number is 43

Answers

Answer:

107.50

Step-by-step explanation:

107.50 times 40 percent is 43

Answer: the answer is 107.5

Step-by-step explanation:

use

is/of = %/100 the / are fraction

Ms. Gonzalez borrowed $4,500 from her bank to buy a jet ski. The loan has an 8.5% annual simple interest rate. If it takes Ms. Gonzalez two years to pay back the loan, what is the total amount she will pay?

Answers

Answer:

765

Step-by-step explanation:

4500x8,5= 38250/100=382,5 x2= 765

The function f(x)=5x5−3x3+1 is/has

Answers

Answer:

15

Step-by-step explanation:

PEMDAS

so do multiplication first

25-9+1

then do addition

25-10

then do subtraction

so

15

whats the 7482th digit of pi
find it if you can

Answers

i think the 7482th digit is 9

Answer:

...4850042818418295383774717036791912893763087010427207210527934076159095560569028788415435937041294487067737642712638215283791146308614599688138515495896934947775300910908956450628879874949987918977330055395549969672231130329962237357438567780028847289642133583266974725834606152803712627432217243252933925759249244741154505859760314253954019027327179534824534471181832675337725688313193570

Step-by-step explanation:


I have 5 paper clips, 8 push-pins and 12 erasers in my bag. Assuming that the odds for selecting paper clips, push-pins and erasers is the same, what is the probability that the item I pull out of the bag is NOT an eraser?

Answers

Answer:

the probability is 13/25

Step-by-step explanation:

5+8 = 13 and there are 12 erasers, 12 + 13 = 25. you have a 13/25 chance of not picking an eraser.

Susana's parents gave her $24 to spend at the carnival. If the tickets for the rides cost $3 each, find the maximum number of tickets Susana can buy

Answers

Answer:

The maximum number of tickets Susana can buy is 8.

Step-by-step explanation:

From the information provided, you can say that the total amount spent at the carnival would be equal to the price per ticket for the number of tickets purchased which can be expressed as:

c=3x, where:

c is the total amount spent

x is the number of tickets purchased

Now, you can replace c with 24 that is the amount Susana's parents gave her to spend at the carnival and then, solve for x:

24=3x

x=24/3

x=8

According to this, the answer is that the maximum number of tickets Susana can buy is 8.

(06.01)The scatter plot shows the relationship between the number of homework assignments turned in over a week and the test score for that same week:

art A: What is the group of points labeled X called? What is the point labeled Y called? Give a possible reason for the presence of point Y.
Part B: Describe the association between a student’s test scores and the number of homework assignments submitted.

Answers

Answer:

a: positive association, the y point is called a deviation

b: looks like the student scores are positive pattern (well accept for that little guy ..little y...)

Step-by-step explanation:

a reason: if you were to draw a line through those points it would be positive linear correlation and that one plot had nothing to do with the correlation

In part a x represents the correlation and y represents the deviation, and in part b association between students test scores and homework assignment is positive.

Graph is given in relation of test score with student home work assignment. Relationship and association of the graph to be determined.


What is correlation?

Correlation implies that one of the subject or value related to other subject or value.


Here, from the graph the sets of value of x is increasing and having positive association. Other side y has only single value in it showing as deviation and nothing else.


Thus, In part a x represents the correlation and y represents the deviation, and in part b association between students test scores and homework assignment is positive.

Learn more about correlation here:
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Tenemos 2 triangulos donde sus angulos mieden 46 y 66 respectivamente, y el lado adyacente a ellos mide 15cm, el criterio de congruencia es

Answers

Answer:

Puesto que se conocen dos ángulos seguidos y un lado adyacente tanto en uno como en otro triángulo, se debe emplear el criterio Ángulo-Lado-Ángulo (ALA) para determinar que los triángulos citados en el enunciado son congruentes.

Step-by-step explanation:

Puesto que se conocen dos ángulos seguidos y un lado adyacente tanto en uno como en otro triángulo, se debe emplear el criterio Ángulo-Lado-Ángulo (ALA) para determinar que los triángulos citados en el enunciado son congruentes.

Bank a charges a six dollar service fee and $.10 for each check written. Bank be charges $5.20 for each check written how many checks does a person need to write each month for the two banks to charge the same amounts in fees?

Answers

Answer:

A person needs to write each month 1.17 checks for the two banks to charge the same amounts in fees.

Step-by-step explanation:

You can write an equation in which the amount charged by bank a is equal to the amount charged by bank b. The amount bank a charges is 6 plus 0.10 for the number of checks written and the amount bank b charges is 5.20 for the number of checks written.

6+0.10x=5.20x, where x is the number of checks written

Now, you can solve for x to find the number of checks written where the two banks charge the same amounts in fees:

6=5.20x-0.10x

6=5.10x

x=6/5.10

x=1.17

According to this, the answer is that a person needs to write each month 1.17 checks for the two banks to charge the same amounts in fees.

Simplify the following:

Answers

( 5n² )( 3n⁴ )

15n⁶

Option D is right answer

Answer:

d. 15n^6

Step-by-step explanation:

i hope this helps :)

Need help ASAP

work out the value of 4y + 3x when x=5 and y=-3

( these are the only answers I can choose from)

A.32
B.-32
C.17
D.11

All support appreciated:)

Answers

Answer:

3

Step-by-step explanation:

4y+3x

4(-3)+3(5) Plug the numbers into the equation.

-12+15

3

Hope this helps and have an amazing day! ❤

There are 12 steps in the staircase. Plz don't do it for points!!! How do you get the answer 150? i am really struggling will mark brainliest.

Answers

You can find “hypotenuse” using Pythagorean to get the length of one of those steps, 12.5, and you get 150 when you multiply that number by 12 for each of the 12 steps

The distance from point A to B is 1 foot.

Given,

There are 12 steps in the staircase.

We need to find the distance of the steps.

The distance is given by AB.

Feet is the plural form of the foot.

What is a Pythagorean theorem?

It states that in a right-angle triangle the hypotenuse is equal to the squares of the other two sides.

If the hypotenuse is H and the other two sides are A and B.

H² = A² + B²

We have a figure,

Where it is in a right-angled triangle.

Two sides are given: 7.5 inches and 10 inches.

And hypotenuse  = AB.

Applying the Pythagorean theorem.

7.5² + 10² = AB²

AB² = 56.25 + 100

AB² = 156.25

AB = [tex]\sqrt{156.25}[/tex]

AB = 12.5 inches

Now,

AB = 12.5 inches.

We need to convert it into feet.

12 inches =1 foot

Multiplying 12.5/12 on both sides.

12.5/12 x 12 inches = 12.5/12 x 1 feet

12.5 inches = 1.0416 feet

Rounding to the nearest tenth we get,

12.5 inches = 1 feet

AB = 1 feet

Thus the distance of the staircase from point A to B is 1 foot.

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A bank account earns interest at a rate of 3.5% per year (in other words it increases in value by that percent) and starts with a balance of $350. Which of the following equations would give the account’s worth, W, as a function of the number of years, y, it has been gaining interest?

Answers

Answer:

Annually cumulating interest can be determined by the following formula:

W=P(1+r)^y

r represents the interest rate as a decimal, and P represents the starting amount of money.

Step-by-step explanation:

Marc is filling 1-cup containers with juice.
He has 5 gallons of juice. How many 1-cup
containers can he fill? (1 gallon = 16 cups)

Answers

Answer:

80

Step-by-step explanation:

5*16 = 80

Hence, the Marc has the number of cups are [tex]80[/tex].

What is the equation?

An equation can be defined as a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.

The most basic and common algebraic equations in math consist of one or more variables.

Here given that,

Marc is filling one-cup containers with juice. He has five gallons of juice.

As we know,

[tex]1gallon=16cups[/tex]

So, it would be [tex]5(16)=80[/tex].

Hence, the Marc has the number of cups are [tex]80[/tex].

To know more about the equation

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I need help quickly and fast

Answers

i might be wrong about this one

Answer:

The answer would be 24

Please help i will give you points

Answers

Answer:

done

Step-by-step explanation:

I have installed it

Step-by-step explanation:

I have installed it. But I couldn't understand questions.

PLEASE HELP!

Now write 40,630 in scientific notation. 40,630 = ____ ____ x 10​

Answers

4.063 × 10^4

........................

Answer:

4.063 x 10 to the 4th pwr

Step-by-step explanation:

Bill launched a model rocket, and estimated its height h, in feet, after t seconds. His results are shown in the table.
Time, t
0
1
2
3
4
Height, h 0 110 190 240 255
Bill's data can be modeled by the function h(t) = -1612 + 128t.
Which value is the best prediction for the height of the rocket after 5.5 seconds?
A. 150 ft
B. 180 ft
C. 220 ft
D. 250 ft
E. 260 ft

Answers

Heyo!

So, the best prediction for the height of the rocket after 5.5 seconds, based on the given data above, I believe would be C. 220 ft.

Hope this helps! Pls, LMK if it does! Good Luck!

The best prediction for the height of the rocket after 5.5 sec will be 220 feet.

What is a quadratic equation?

A quadratic equation is an equation where the highest power of the variable is 2.

Given data for the height of the rocket at different time is modeled by the function  h(t) = -16t² + 128t

The height of the rocket after 5.5 sec will be

= h(5.5) = [- 16(5.5)² + 128 × 5.5] feet = (- 484 + 704) feet = 220 feet.

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An airline food service finds that a recent flight of 120 passengers ordered dinner as depicted in the table to the right. Based on this data, how many lasagna dinners are likely to be needed for a flight with 360 passengers?​ Answer correctly for 100 points!

Answers

Answer:

3 times 25 = 75

Step-by-step explanation:

Plz vote Brainliest

There are 75 lasagna dinners are likely to be needed for a flight with 360 passengers.

What is Proportional?

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Given that;

An airline food service finds that a recent flight of 120 passengers ordered dinner as depicted in the table to the right.

Here, Number of Lasagna for 120 passengers = 25

Hence, For 360 passengers number of lasagna is,

⇒ 120 / 35 = 360 / x

Where, x is umber of lasagna for 360 passengers

⇒ x = 360 × 25 / 120

⇒ x = 75

Thus, There are 75 lasagna dinners are likely to be needed for a flight with 360 passengers.

Learn more about the proportion visit:

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An easel with sides of equal length opened and placed on a desk. What type of triangle is formed by the easel and the desk by sides and by angles?

Answers

Answer:

isosceles right triangle

Step-by-step explanation:

In this question it is given that the two sides of easel are same.

A triangle formed has three sides - two of easel and one of the table itself.

The angle formed in 90 degrees (right angle)

Hence the triangle is a isosceles right triangle

hey it's 10 points related to maths

A shopkeeper sells apples in two types of boxes, one small and one large. A large box
contains as many as 8 small boxes plus 4 loose apples. The number of apples in a
large box is given to be 100. Find the number of apples in a small box.​

Answers

Answer:

12 apple in a small box.

Step-by-step explanation:

If there's 100 in a large box, then subtract the 4 loose apples to only have left 96 apples among the 8 small boxes. 96/8 is 12 apples per small box

Please help (links will lead to a report)

Answers

Answer:

the shaded part is 60% of the thing

Step-by-step explanation:

3/5 = 60%

Please Please tell me if I did this right or not, if you know how to do it. Please tell me the correct answers if they are wrong.

Answers

Answer:

They seem good to me but I think you should switch up the numbers ion know I gotta see

Answer: 1-4 are correct

A 30oz bottle of sriracha is on sale
for $2.99. What is the price per
ounce?

Answers

Answer:

Each oz is worth 10 cents

Step-by-step explanation:

2.99/30 = .099 ~ .10

please determine if the relationship is linear, exponential, or quadratic. justify your answer.

Answers

Answer:

This function is a quadratic.

Explanation:

If you sketch a graph, you will see the points form a U, representing a quadratic function.

....... PLEASE HELP ME OUT HERE LOL

Answers

Answer:

2

Step-by-step explanation:

you take you longest side half it and it equals the other two sides

encontrar la longitud de los lados de un triangulo isosceles sabiendo que el perimetro es igual a 60m y que el lado desigual mide el doble mas 4m que uno de los lados iguales

Answers

Hsbsjsjsiaibsbdbddhbsndjajananndjxizhsbs

Five friends attend a matinee movie and spend $8 per ticket. They also purchase a small bag of
popcorn each. If the friends spend a total of $62, how much does each small bag of popcorn cost?
Write and solve an equation.

Answers

The answer is each bag cost $4.50 .
Your equation would be : (8 x 5)= 40 + (? X 5) = $63

I SHALL REWARD THEE WITH BRAINLIEST Change -2Y - 2X = -6 to the slope intercept form of the equation of a line (I NEED EXPLANATIONS FOR FURTHER QUESTIONS I GET STUCK ON) :3 ty and hawwo

Answers

Answer:

y = -x + 3    

Step-by-step explanation:

First of all, you need to memorize several forms of the equation of a straight line.  Here you have -2y - 2x = -6 in "standard form" and want the equivalent equation in "slope intercept form," y = mx + b.

To get this, solve the first equation for y by dividing all three terms by -2:

y + x = 3.

Then solve this result for y:

y = -x + 3    

This is the desired equation in slope-intercept form.

WILL GIVE BRAINLIEST ANSWER!!!!!

LP is a radius of the circle. Is KL tangent to the circle? Note the figure may not be drawn to scale.

Answers

I’m 85% sure it’s the long line on the bottom if not then uhm I guess I’m wrong
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