Question

Clair bought three bars of soap and five sponges for $2.31. Steve bought five bars of soap and three sponges for $3.05. find the cost of each item

Answer 1

3s+5p=2.31
5s+3p= 3.05
that's the equation

Answer 2

What do you do to get the answer?

Answer 3

you multiply numbers to each side to get one of the same number

Answer 4

so u can do this: 5(3s+5p)= 5(2.31)
3(5s+3p)= 3(3.05)

Answer 5

so its 15s+25p= 11.55
-15s-9p= -9.05
sorry i forgot its supposed to be -3(5s+3p)= -3(3.05) on the top

Answer 6

then u cancel out both of the 15s
so p=2.5
p is the variable for the sponges
so one sponge is $2.50

Answer 7

and then you just use that to get the price of the soap