MATHEMATICS HIGH SCHOOL

2x+5y=16 -5x-2y=2
Solve the following system of equations. Express your answer As an ordered pair in the format (a,b), with no spaces between the numbers or symbols.

Answers

Answer 1

Answer:

Answer:

(x,y) = (-2,4)

Step-by-step explanation:

We have two equations:

$(1).\:2x+5y=16\n(2).-5x-2y=2$

Now let us us multiply equation (1) by 5, and equation (2) by 2:

$(1).\:5(2x+5y=16)\rightarrow\:10x+25y=80\n\n(2).2(-5x-2y=2)\rightarrow\:-10x-4y=4$

and add the two equations to get:

$21y=84$

$\boxed{y=4}$

Now we put this value of $y$ into equation(1) and solve for $x$ :

$2x+5(4)=16$

$2x=-4$

$\boxed{x=-2}$

Thus the solution to our system of equations is

$\boxed{(x,y)=(-2,4)}$

Answer 2

Answer:

Answer:

Make sure that you enter just (-2,4)

Related Questions

Find a4 in the sequence given by {a1=-3 and an=an-1+7
If x = 2, find the value of 3x^3 - 3x - 2.
A bottle of iron supplement has 45g of iron in 330ml of solution. How many grams of iron are in100ml of solution?
Simplify: 4 square root of 2 plus square root of 32 minus square root of 168 square root of 2 minus 44 square root of 2 plus square root of 32 minus 49 square root of 2 minus 44 square root of 34 minus 4
(01.02) The number of roses (r) in a garden increases when the number of weeds (w) decreases. Write the correct equation for this scenario, and solve for the number of roses when there are 5 weeds.

1.05555555556 as a fraction

Answers

That number as a fraction is 19/18

As topheavy: 19/18
Or as a mixed number: 1 1/18

Last week, Hazel paid $32 to have 50 reports printed. This week, she paid $57 to have 100 reports printed. Assume the relationship is linear. Which equation models the relationship between the number of reports,x, and the and the cost, y, ?

Answers

Answer: Relationship between the number of reports and the cost of reports printed is given by

$2y-x=14$

Step-by-step explanation:

Let the number of reports be x

Let the cost of report printed be y

Since we have given that for 50 reports he is paid $32

and for 100 reports printed he is paid $57.

So we have (50,32) and (100,57)

To get the relationship between the number of reports x, and the cost y , we find the slope using two points mentioned above.

As we know the formula for two point slope form :

$m=(y_2-y_1)/(x_2-x_1)\n\nm=(57-32)/(100-50)\n\nm=(25)/(50)\n\nm=(1)/(2)$

Now, using the equation of line using two point slope form:

$y-32=(1)/(2)(x-50)\n\n2(y-32)=x-50\n\n2y-64=x-50\n\n2y-x=-50+64\n\n2y-x=14\n$

∴ This is the required relationship between the number of reports and the cost of reports printed.

32y=50x
57y=100x
Simplify:
y=1.5x
y=1.75x

CAN SOMEONE JUST PLEASE ANSWER THIS ASAP FOR BRAINLIEST!!!!

Answers

The window is -20 to 20 on all axes
The vertex is 2,16

Answer: The ball hit the ground 6 seconds after Amir threw it.

0=-(x-2)^2 16
(x-2)^2=16
x-2=16 square rooted
x-2=4
x=6

If....1=5 , 2=10, 3=30, then 4=?

Answers

The fourth term of the sequence will be 110

The given expression forms a sequence 5, 10, 30 ...

First term = 5

Second term = 10

Third term = 30

Let the fourth term be x

Taking their common difference

10 - 5 = 5

30 - 10 = 20

Since the multiplicity of the common difference is 4

Then T4 = 20(4) + 330

T4 = 80 + 30

T4 = 110

Hence the fourth term of the sequence will be 110

Learn more here: brainly.com/question/19102890

Your answer will be 4=120 because if you see how the pattern is going you'll notice that they are multiplying the last number to the first number. For example:
1=5, 2=10, 3=30

5 10
x 2 x 3
___ ___
10 30
So that means that:
30
x 4
___
120

How do I find this answer 20=4x