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2 years ago

If a map key says that 1" = 12 miles, how many miles are represented by 3.2"?

Mathematics

1 answer:

Neporo4naja [7]2 years ago

4 0

12*3.2=38.4 so yeah

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Susan open an account with $100. She deposits $100.00 every year to an account that earns simple interests at a rate of 5%. If s

NemiM [27]

Answer:

$20

Step-by-step explanation:

multiply 100.00 x 5% which is 100x 0.05, then it will give you 5.

add 5, 4 more times which will give you 20

3 0

2 years ago

Can somebody help me plz

dexar [7]

Answer:

Step-by-step explanation:

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2 years ago

Xavier walked 8 miles in 5 hours. What was his walking rate in miles per hour?

inna [77]

Answer:

0.6 miles per hours per hour

Step-by-step explanation:

Simply divide 5 by 8

your answer: 0.6 miles per hour.

7 0

2 years ago

A pet supply store sells dog biscuits and cat treats. The store has 27 boxes of dog biscuits and 21 pouches of cat treats/each b

Gre4nikov [31]

Answer:

There are more cats treats. 504 treats

Step-by-step explanation:

27 boxes of dog biscuits. Each 18 biscuits

27*18=486 biscuits

21 pouches of cat treats. Each 24 treats.

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3 0

2 years ago

Mika is a local farmer who is interested in how often residents in her town go to a farmer's market each month. She surveys 124

TEA [102]

Answer:

The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.

Step-by-step explanation:

Margin of error

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation and n is the size of the sample.

Standard deviation of 1.3

This means that $\sigma = 1.3$

She surveys 124 families

This means that $n = 124$

Margin of error and meaning:

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 2.58\frac{1.3}{\sqrt{124}}$

$M = 0.3012$

The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.

6 0

2 years ago