Mathematics: The ratio of zimba s current weight to his weight 3 years ago is 5 to 4. in pounds, what did zimba weigh 3 years ago if he has gained 3.5 pounds since then?

The ratio of zimba s current weight to his weight

Ответ:

gabriella1232002

08.01.2022

14 pounds

Step-by-step explanation:

Let C denote Zimba's current weight and A his weight 3 years ago. We are given the ratio: $\frac{C}{A}=\frac{5}{4}$ as well as $C=A+3.5$ . We substitute for C in the first equation to find: $\frac{A+3.5}{A}=\frac{5}{4}.$ Multiplying both sides by 4A to clear denominators, we have: $4A+14=5A.$

Finally we subtract 4A from both sides and find $A=\boxed{14}$ pounds.

Hope this helped! :)

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The ratio of zimba's current weight to his weight 3 years ago is 5 to 4. in pounds, what did zimba weigh 3 years ago if he has gained 3.5 pounds since then?

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