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3 years ago

10

Zoe is helping her grandmother freeze strawberries from the family garden. They have 20 pounds of strawberries to freeze. If the

y put 1.25 pounds of strawberries into each freezing container, how many containers will they fill?

1 answer:

-BARSIC- [3]3 years ago

3 0

Answer:

16

Step-by-step explanation:

1 Container = 1.25 Pounds

? Container = 20 Pounds

(Simple crisscross multiplication) <u> </u> <u>1</u><u> </u><u>x</u><u> </u><u>2</u><u>0</u><u> </u><u>Pounds</u> = <u>2</u><u>0</u> = 16 Containers

1.25Pounds 1.25

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1) A traditional die is a cube with each of its six sides representing the numbers from 1 to 6. Mr. Dicey customized a die by re

liraira [26]

Answer:

1) $\frac{2}{5}$

2) 49.225

3) $\frac{7}{2}$

Step-by-step explanation:

1) To find the expected value of the dice we can use the following equation:

$E(x)=x_{1}*P(x_{1})+x_{2}*P(x_{2})+...+x_{n}*P(x_{n})$

So in our problem the values x will be: 1/1, 1/2, 1/3, 1/4, 1/5 and 1/6 and the probavility for all values is 1/6 so the expected values will be: $E(x)=(\frac{1}{1} *\frac{1}{6}) +(\frac{1}{2} *\frac{1}{6}) +(\frac{1}{3} *\frac{1}{6})+(\frac{1}{4} *\frac{1}{6})+(\frac{1}{5} *\frac{1}{6})+(\frac{1}{6} *\frac{1}{6})$

$E(x)=0.167+0.083+0.056+0.042+0.033+0.028=0.409\approx \frac{2}{5}$

2) To find the variance of the expected values we can use the equation:

$Var(x)=\frac{\sum_{i=1}^{n}(x_{i}-\overline{x})^{2} }{n}$

So for our problem will be:

$Var(x)=\frac{(3-10.5)^2+(4-10.5)^2+(17-10.5)^2+(18-10.5)^2}{4}$

$Var(x)=\frac{56.25+42.25+42.25+56.25}{4}$ $Var(x)=\frac{196.9}{4}=49.225$

3) To find the expected value of the dice we can use the following equation:

$E(x)=x_{1}*P(x_{1})+x_{2}*P(x_{2})+...+x_{n}*P(x_{n})$

So in our problem the values x will be: 1, 2, 3, 4, 5 and 6 and the probavility for all values is 1/6 so the expected values will be: $E(x)=(1*\frac{1}{6}) +(2 *\frac{1}{6}) +(3 *\frac{1}{6})+(4 *\frac{1}{6})+(5 *\frac{1}{6})+(6 *\frac{1}{6})$

$E(x)=0.17+0.33+0.5+0.67+0.83+1=3.5\approx \frac{7}{2}$

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3 years ago

What is the MAD of 0,3,6,9,11,13,14

Romashka [77]

I believe if I did this correctly, it should be 4 2/7, hope this helps!

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3 years ago

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serg [7]

Answer

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Step-by-step explanation:

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Vlad1618 [11]

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3 years ago

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3 years ago