Question

Can anyone help me with this

Answer 1

Answer:

ice cream = 3.80$

cup cake = 4.25$

donuts = 2.5$

Step-by-step explanation:

a=ice cream

b = cup cake

c = donuts

we can write the following equations given from the picture:

a+b+b=12.30$   equation 1

b+c+a=10.55$   equation 2

b+c+c =9.25$   equation 3

using equation 1 we have:

2b+a=12.30

a=12.30-2b

using equation 3 we have:

2c+b=9.25

c=(9.25-b)/2

using equation 2 we have:

b+((9.25-b)/2)+12.30-2b=10.55

((2b+9.25-b)/2) - 2b = 10.55-12.30

((2b+9.25-b-4b)/2) =-1.75

-3b+9.25=2*(-1.75)

-3b= -3.5-9.25

-3b=-12.75

b=12.75/3

so we have b= 4.25$ = cup cake

we have:

c=(9.25-b)/2= (9.25-4.25)/2

c=2.5$= donuts

a= 12.30-2b= 12.30-2*(4.25)

a= 12.30-8.5 = 3.8$ = ice cream