Can someone me i need to know the solution to 2x+y=20 and -5y=-6x+12

2x+y=20 --> x=10-1/2y

-5y=6x+12v --> y=6/5x-12/5

Step-by-step explanation:

The first step is to turn them into a linear equation.

2x + y = 20

-2x        -2x

y = -2x +20

-5y = -6x + 12

-5       -5      -5

y = 6/5x - 12/5

The second step is to find the solution:

-2x + 20 = 6/5x - 12/5

+2x            +2x

20 = 16/5x - 12/5

+12/5         +12/5

112/5 = 16/5x

16/5      16/5

7 = x

The last step is to check to see if the solution works:

-2(7) + 20 = 6/5(7) - 12/5

-14 + 20 = 42/5 - 12/5

6 = 6

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.