I need help

2 answers:

5 0

The answer to that question is the sum of the hours he studied for on both days, which will be 1/4 + 3/8.

However, we cannot add fractions with different denominators. In this case, it's 4 and 8.

So if we want to add them, we must make the denominators similar to each other. How to make 4 into 8? We multiply it by 2: 4 x 2 = 8.

BUT when we multiply fractions, we must multiply both the numerator and the denominator by the same number to keep its original value. In this case, if you want to multiply 4 by 2, you must also multiply 1 by 2.

=> SO to make 1/4 into y/8, we will multiply it like this (1 x 2) / (4 x 2) = 2/8

Now we can add the 2 fractions together. 2/8 + 3/8 = (2 + 3)/8 = 5/8. THIS IS YOUR ANSWER.

TL;DR: He studied 5/8 (or 0.625) hour altogether on both days.

mario62 [17]3 years ago

5 0

The answer is 5/8 hours

You just need to sum it up:
$\frac{1}{4} + \frac{3}{8} = \frac{1*2}{4*2} + \frac{3}{8}= \frac{2}{8}+ \frac{3}{8}=\frac{2+3}{8}=\frac{5}{8}$

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Answer: Only B

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Explanation:

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In contrast, Situation B is a function because a student will only have one favorite math teacher. I'm interpreting this to mean "number one favorite" and not a situation where a student can select multiple favorites.

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3 years ago

What is the greatest common factor of 28 and 46?

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2 years ago

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Let g be the function given by g(x)=limh→0sin(x h)−sinxh. What is the instantaneous rate of change of g with respect to x at x=π

lorasvet [3.4K]

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<h3>How to determine the instantaneous rate of change of a given function</h3>

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Where $h$ is the difference rate.

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