2 years ago

If possible, use elimination to solve the system of equations. 5x + 10y = 7 4x + 8y = 3

Mathematics

1 answer:

Sergeeva-Olga [200]2 years ago

8 0

Hello!

Let's solve this question by using elimination.

5x + 10y = 7

4x + 8y = 3

Let us solve for "y" first by making our "x" variables cancel each other out.

4(5x + 10y = 7)

-5(4x + 8y = 3)

20x + 40y = 28

-20x -40y = -15

0 = 13

Since both the "x" and "y" variables were canceled out after trying to eliminate one of the variables, we can't find a solution since we now have no variables to solve for, therefore there is no solution.

Answer: No solutions

You might be interested in

Find the greatest common factor of

labwork [276]

Answer:

D. xy.

Step-by-step explanation:

The GCF of x and x^2 is x and GCF of y and y^2 is y.

Answer is xy.

5 0

2 years ago

Read 2 more answers

Find the solution of this system of equations.

Brrunno [24]

Answer:

x=-11, y=0. (-11, 0).

Step-by-step explanation:

x-12y=-11

x-y=-11

-------------

x=y+(-11)

x=y-11

y-11-12y=-11

-11y=-11+11

-11y=0

y=0/-11=0

x-0=-11

x=-11+0=-11

8 0

3 years ago

A building 64 ft high casts a 288-ft shadow. Sarah casts an 18-ft shadow. The triangle formed by the building and its shadow is

Rzqust [24]

s/18=64/288 multiply both sides by 18

s=1152/288

s=4 ft

So Sarah is four feet tall.

7 0

2 years ago

Jack had 3 bags of golf balls with b balls in each bag; then his friend gave him 6 more golf balls. How many golf balls does Jac

meriva

3b+6

Although I'm not sure I understand the question

5 0

3 years ago

Read 2 more answers

4 consecutive integers add up to 34. Write an equation to find the numbers

Kisachek [45]

Answer:

$(n+(n+1)+(n+2)+(n+3))=34$

Step-by-step explanation:

$(n+(n+1)+(n+2)+(n+3))=34$

To make them consecutive, means they have to be one after the other.
You assume one of the numbers are n, to make the other integers consecutive you add 1 then 2 then 3.

4 0

2 years ago