3 years ago

3(a+9/12)=3(a+7/12)+ (?)

Mathematics

1 answer:

rosijanka [135]3 years ago

5 0

3a+2.25=3a+1.75
Implies 3a+2.25=3a+1.75+.5
Answer is 0.5

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Let's start with part B. if it was originally 10 cm tall and it goes up 0.5 cm. each day, then we know that to go up one cm it needs two days. With that information we can say that 8*2 = 16. So it needs 17 days to go up 8.5 cm which would make it 18.5 cm tall.

Step-by-step explanation:

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