Explain how to use equivalent ratios to find 125% of 200.

2 answers:

7 0

125 of 200 can be wriiten as:
125
200
Multiply both numerator & denominator by 100

125
200
×
100
100
=
62.5
100
= 62.5%
If you are using a calculator, simply enter 125÷200×100 which will give you 62.5 as the answer.

expeople1 [14]3 years ago

3 0

Write 125% as the ratio 125/100. To find an equivalent ratio, you know that 100 times 2 = 200, so 125 x 2 will give you the answer. 125 x 2 = 250. 125% of 200 is 250.

You might be interested in

A student records the repair cost for 22 randomly selected dryers. A sample mean of $98.78 and standard deviation of $15.49 are

Gelneren [198K]

Answer:

The critical value that should be used is T = 2.0796.

The 95% confidence interval for the mean repair cost for the dryers is between $91.912 and $105.648.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 22 - 1 = 21

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 21 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2.0796, which is the critical value that should be used.