3 years ago

16 is 40% of what number?

1 answer:

8 0

$\begin{array}{cccc}16&-&40\%&|divide\ both\ sides\ by\ 4\\4&-&10\%&|multiply\ both\ sides\ by\ 10\\40&-&100\%\end{array}\\\\Answer:\boxed{16\ is\ 40\%\ of\ 40}$

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A model airplane is built to a scale of 1 in.:12 ft. If the model plane is 11 inches long, find the length of the actual plane,

torisob [31]

Answer:

132 feet

Step-by-step explanation:

we know that

The scale is equal to $\frac{1}{12}\ \frac{in}{ft}$

That means ---> 1 inch in the model represent 12 feet in the actual

To find the actual dimensions of the airplane, divide the dimensions of the model by the scale

$11\ in:\frac{1}{12}\ \frac{in}{ft}=11(12)=132\ ft$

4 0

2 years ago

Help me with this it's confusing :(

fredd [130]

For the equation it would be y=my+b

3 0

3 years ago

Use the digits 1,3,4,and 7 to create two whole numbers whose product is estimated to be about 600

blagie [28]

34 x 17 (round the 2 numbers)
30 x 20
600

Also, 34 x 17 = 578, which rounds to 600

The answer is 34 and 17

7 0

2 years ago

Read 2 more answers

At a canning facility, a technician is testing a machine that is supposed to deliver 250 milliliters of product. The technician

Serhud [2]

Answer:

The value of the test statistic is $t = 1.97$

Step-by-step explanation:

The null hypothesis is:

$H_{0} = 250$

The alternate hypotesis is:

$H_{1} \neq 250$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the null hypothesis value, $\sigma$ is the standard deviation and n is the size of the sample.

In this problem:

$X = 251.6, \mu = 250, \sigma = 5.4, n = 44$

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{251.6 - 250}{\frac{5.4}{\sqrt{44}}}$

$t = 1.97$

The value of the test statistic is $t = 1.97$

4 0

3 years ago

Can you guys help me find the value of x

Tanzania [10]

Answer: x= 54

Step-by-step explanation:mathhhhh

7 0

2 years ago