Mathematics: Hey guys, I am about to start studying for a math test happening in two weeks about statistics and I am wondering if you guys have any tips you can give me to ace this test. I have been failing in math lately because I think that I know how to solve a certain problem when revising but when it comes to the test I forget the process. Some tips, please?

Hey guys, I am about to start studying for a math

Ответ:

FireStorm4346

10.02.2022

Answer more questions on every topic you’ve been thought. Answer research questions and questions likely to come out in the exam. Dwell on what you are trying to know more that what you already know. A planner could help as well and the Good God would help you

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61497

08.02.2020

Mathematics

$8\frac{1}{4}\ miles$

Step-by-step explanation:

We can make the conversion from mixed numbers to improper fractions:

Multiply the whole number part by the denominator of the fraction.Add the numerator of the fraction and the product obtained (This sum will be the new numerator). The denominator is the same.

Then:

$2\frac{1}{4}=\frac{(2*4)+1}{4}=\frac{9}{4}\\\\3\frac{1}{3}=\frac{(3*3)+1}{3}=\frac{10}{3}\\\\2\frac{2}{3}=\frac{(2*3)+2}{3}=\frac{8}{3}$

We need to add these fractions in order to calculate how far Erin jogged, we must find the Least Common Denominator (LCD):

$4=2*2=2^2\\\\3=3\\\\LCD=2^2*3=12$

Then, the sum is:

$\frac{9}{4}+\frac{10}{3}+\frac{8}{3}=\frac{27+40+32}{12}=\frac{33}{4}\ miles$

To convert this improper fraction to a mixed number:

When you divide 33 by 4, you get a quotient of 8. This will be the whole number.The remainder obtained is 1. This will be the numerator of the fraction.The denominator does not change.

Therefore, you get:

$\frac{33}{4}\ miles=8\frac{1}{4}\ miles$

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