Question

Help with a system of equations?

a + s = 150
45a + 28.5 = 4770

Answer 1

it it 5 or s in the first equation

Answer 2

s

Answer 3

ok from the second equation can you find the value of a ?????

Answer 4

I'm trying to figure out how... divide?

Answer 5

use calculator

Answer 6

ok let me make it easy for you

Answer 7

but I have to use substitution or elimination

Answer 8

substitution

Answer 9

as you find the value of " a " from the second equation put that value in the first equation and you will get " s " thats it

Answer 10

ohhh okay. I understand, thank you!

Answer 11

welcome

Answer 12

45a + 28.5 = 4770

did you add -28.5 to both sides, like this:
45 a + 28.5 + -28.5 = 4770 + -28.5

now simplify. what do you get ?

Answer 13

45a = 4741.5?

Answer 14

now divide both sides by 45 what you get???

Answer 15

yes. now do as rizwan suggests: divide both sides by 45
45 a/45 = 4741.5/45

on the left side 45/45 is 1 so you get 1*a or just a

Answer 16

thank you so much! I appriciate your help!