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3 years ago

7

Joaquin goes out for a long walk. He walks 5/12 of a mile and then sits down to take a rest. Then he walks 1/3 of a mile. How fa

r did Joaquin walk altogether?

1 answer:

Vsevolod [243]3 years ago

6 0

The answert to ur question is 3/4

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-- 0.005 kilometers = 5 meters

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- 4 & 5 are roots

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3 years ago

A man saves 4% of his monthly

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Answer:

Although the question is not clear, It most likely looks like you were asking for the calculation of the savings for the month after increase.

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Just incase you were looking for the savings before the increase, the answer is $781.6 (as calculated above)

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3 years ago

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scZoUnD [109]

Remember that
1) For functions $f(x)$ and $g(x)$ , $\int {f(x) + g(x)} \, dx = \int {f(x)} \, dx + \int {g(x)} \, dx$
2) For a function $f(x)$ and a constant $c$ , $\int {cf(x)} \, dx = c \int {f(x)} \, dx$

Using these two properties of integrals, and the fact that $\int\limits^3_1 {e^x} \, dx = e^3 - e$ , we can see that

$\int\limits^3_1 {5e^x - 1} \, dx$
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$= 5 \int\limits^3_1 {e^x} \, dx - \int\limits^3_1 1} \, dx$
$= 5(e^3 - e) - \left.x\right|_1^3$
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3 years ago