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3 years ago

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One Mr. good bar and to mounds bars contain 780 calories to Mr. good bars and one Mounds bar contained 786 calories find a calor

ic content of each candy bar

1 answer:

Karo-lina-s [1.5K]3 years ago

8 0

Around 783. thats the answer hopefully.

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if a box of pen given 200 children each will get to Pen if the number of children is reduced by 10 how many pens would each get

wlad13 [49]

Answer:

20

Step-by-step explanation:

So origianally, a box of 200 pens gave 2 each to every child. IThat means that there were 100 kids origianally. How? 200/2=100.

If they reduced it by 10, then 100/10=10.

200 / 10 = 20.

So each child would get 20 pens!

<em>For any questions, please say so in the comments :)</em>

<em>Have a blessed day and hope this helped! :D</em>

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3 years ago

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A 46 gram sample of a substance that is used to sterilize surgical instruments has a k-value of 0.1374. Find the substance's hal

mars1129 [50]

Answer:

$t=5.0days$

Step-by-step explanation:

Using the formula for the exponential decay that is $N=N_{0}e^{-kt}$ , we have N= $\frac{1}{2}{\times}46=23$ , $N_{0}=46$ and k=0.1374.

Thus, $N=N_{0}e^{-kt}$ becomes

$23=46{\times}e^{-0.1374t}$

$\frac{23}{46}=e^{-0.1374t}$

$\frac{1}{2}=e^{-0.1374t}$

Taking log on both sides, we get

$ln(\frac{1}{2})={-0.1374t}$

$t=\frac{ln\frac{1}{2}}{-0.1}$

$t=\frac{-0.6931}{-0.1374}$

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3 years ago

A line with a slope of 7 and an x-intercept of 4 passes through which of the following points?

saw5 [17]

A I think but I’m not postitive

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3 years ago

This is for a Math test plz help me

Mrac [35]

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A

Step-by-step explanation:

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