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the number of calories in a piece of cake is 20 less than 3 times the number in a scoop of ice cream. The cake and ice cream together have 620 calories. how many calories are in each

Respuesta :

igoroleshko156

Answer:

Ice Cream is 155 calories

Cake is 445 calories

Step-by-step explanation:

Step 1:  Make an equation

3c - 20 = p

p + c = 500

Step 2:  Solve the system of equations

p = 3c - 20

3c - 20 + c = 620

4c - 20 + 20 = 620 + 20

4c / 4 = 620 / 4

c = 155

p = 3(155) - 20

p = 465 - 20

p = 445

Ice Cream is 155 calories

Cake is 445 calories

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