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2 years ago

1 1/5 divided by 3/10

1 answer:

4 0

Answer: 4. This is because 1 and 1/5 = 1.2 and 3/10 = 0.3 and 1.2 divided by 0.3 = 4. That's because 1.2 can be split into 4 equal groups and each group has 0.3.

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The volume of a cube is 125 Ft³ what are the dimensions of the cube?

Nikolay [14]

Answer:

the sides are 5ft long

Step-by-step explanation:

since it is a cube we know each side is the same and the cube root of 125 is 5

8 0

1 year ago

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Need help fast!! What is the value of x

prohojiy [21]

Answer:

4.5

Step-by-step explanation:

4 0

3 years ago

Damon is 7 years older than his brother Mark. The sum of Damon and marks age is 29

Ugo [173]

Answer:

Damon is 18, Damon's brother is 11 years old.

Step-by-step explanation:

So, the total age of them both is 29. Damon is 7 years older, so we use 29-7=22. Now, 22 is Damon's brother's age times 2, so we use 22/2=11. 11 is Damon's age is 11+7=18, and His brothers age is 11.

3 0

3 years ago

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A limnologist wishes to estimate the mean phosphate content per unit volume of lake water. It is knownfrom studies in previous y

telo118 [61]

Answer: 68

Step-by-step explanation:

As per given , we have

Population standard deviation : $\sigma=4$

Critical value for 90% confidence interval = $z_{\alpha/2}=1.645$

Margin of error : E= 0.8 milligrams

The formula to find the sample size is given by :-

$n=(\dfrac{z_{\alpha/2}\ \sigma}{E})^2$

i.e. $n=(\dfrac{(1.645)(4)}{0.8})^2=(8.225)^2$

$=67.650625\approx68$

Hence, the limnologist must analyze 68 samples.

6 0

3 years ago

Jack and Peter each have the same amount of money in their wallets. They went to the store together and decided to buy some cook

Free_Kalibri [48]

Answer:

Yes they do.

Step-by-step explanation:

You know this because if they show up to the store with the same amount of money and SPLIT the amount of money for the cookies, they will still have the exact same amount.

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3 years ago

Read 2 more answers