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Sonbull [250]
1 year ago
15

Brian is 8 and his brother is twice his age. How old will his brother be when brian is 11?.

Mathematics
2 answers:
GenaCL600 [577]1 year ago
5 0
If brian is 8 and his brother is twice his age, his brother is 16. His brother is 8 years older so when Brian is 11 he will be 19
ArbitrLikvidat [17]1 year ago
5 0
Twice means multiplying by 2 . So when Brian is 11 his brother will be 22
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Answer:

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Step-by-step explanation:

Given the equation that modeled the height expressed as h = -16t^2 + 80t + 25, where h is the height and t is the time in seconds.

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0= -32t+80

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t = 80/32

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h = -16(2.5)^2 + 80(2.5) + 25

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