Matt is three times as old is Jessica. The sum of their ages will total 56. How old are they now?
1 answer:
Answer:
step 1: 3x+x=56
step 2: 4x=56
step 3: x=14
Jessica is 14. Matt is 3 times her age so Matt is 42. 14+42 equals 56.
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
answer : r = y - 28 / 12
explanation :
y - 28 = 12r
y - 28 / 12 = r
switch sides ^
r = y - 28 / 12
That would be 650 = x - 0.1x
I think the sandwich should sell for $7.56.
