Answer:
ofc ill help! x=-35
Step-by-step explanation:
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<h2>
QUESTION</h2>
What is 33% of 400?
<h2>
ANSWER AND EXPLANATION</h2>
To find the percent of a number, you have to change the percent into a decimal or a fraction and multiply by the number.
<h3>
DECIMAL</h3>
To change a percent into a decimal, remove the percent sign and move the decimal point 2 places to the left.
![33 \% \rightarrow 0.33](https://tex.z-dn.net/?f=33%20%5C%25%20%5Crightarrow%200.33)
Now that you have your decimal, multiply by 400:
![0.33 \times 400 = 132](https://tex.z-dn.net/?f=0.33%20%5Ctimes%20400%20%3D%20132)
ANSWER = 132
<h3>
FRACTION</h3>
To change a percent into a fraction, make the percent number as the numerator(top number) and 100 as the denominator(bottom number) since fractions are out of 100.
![33 \% \rightarrow \frac{33}{100}](https://tex.z-dn.net/?f=33%20%5C%25%20%5Crightarrow%20%5Cfrac%7B33%7D%7B100%7D)
Now that you have your fraction, multiply by 400:
![\frac{33}{100} \times 400 = \frac{13200}{100} \rightarrow 132](https://tex.z-dn.net/?f=%5Cfrac%7B33%7D%7B100%7D%20%5Ctimes%20400%20%3D%20%5Cfrac%7B13200%7D%7B100%7D%20%5Crightarrow%20132)
ANSWER = 132
<em>If you have any questions, feel free to ask in the comments! :)</em>
Let the distance be x miles
Time = Distance / speed
Time taken by Mike to go to his friend's house = x / 40 hours
Time taken by him to return = x / 45 hours
Total time = x / 40 + x / 45 = 4 hours
= 9x + 8x = 1440 miles
17x = 1440
= x = 1440 ÷ 7
= x = 84.706
Time taken to return home = 84.706 /45= 1.882 hours .
Therefore , Mike took 1.882 hours to reach home .
Per cent means out of 100. 47/100