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valentina_108 [34]
3 years ago
6

There are 20 students in a math class who have brown hair. This represents 80 percent of the students in the class. Which equati

on can be used to find the total number of students in the math class? 20 x 100 2000 80x 100 2000 E 400 80 x 5 20x5 90-4 100=4 25 20-120 80-180​

Mathematics
2 answers:
Reptile [31]3 years ago
5 0

Answer:

The answer is C

Step-by-step explanation:

JulsSmile [24]3 years ago
5 0

Answer:

C

Step-by-step explanation:

You might be interested in
Why do two negatives equal a positive when adding?
alex41 [277]
Two negatives <em>do not </em>equal a positive when adding. If you're in debt and you add more debt, does that get you out of debt?

Two negatives <em>do </em>equal a positive when you're multiplying them together though. This makes sense if you imagine multiplication as squishing or stretching a particular number on the number line. For example, imagine multiplying 2 x 1/2 as <em>squishing </em>the number 2 two times closer to 0. When you multiply 2 by a negative number, say, -1, you squish it so far down that you <em>flip it to the negative side of the number line</em>, bringing it to -2. You can imagine a similar thing happening if you multiply a number like -4 by -2. You squish -4 down to zero, and then <em>flip it to the positive side</em> and stretch it by a factor of 2, bringing it to 8.
4 0
3 years ago
Perform the indicated operation 5 1/6 - 2 2/3
goldenfox [79]

Answer:

2½

Step-by-step explanation:

First find the Least Common Denominator [LCD], which is 6, then convert 5⅙:

5⅙ → 4 7⁄6

5 \frac{1}{6}  - 2 \frac{2}{3}  = 4 \frac{7}{6}  -  2 \frac{4}{6}  = 2 \frac{3}{6}  = 2 \frac{1}{2}

You see, we regrouped 1 from 5⅙ to make sure that the top mixed number had a higher value than the bottom mixed number, so it is much easier to work with.

I am joyous to assist you anytime.

7 0
3 years ago
For problem 2,f(2) =
just olya [345]

Answer:

4f

Step-by-step explanation:

Simplify & Multiply :)

6 0
3 years ago
Whats 16n = 24<br> need help
Alex

Answer:

this means that the first exprestion is the same as the second .but I don't know what you are asking.

I think you need the value of n

Step-by-step explanation:

16n=24

n=24/16

n=3/2

n=1.5

8 0
3 years ago
100-121^2=0 What are solutions to this equation?
Neporo4naja [7]

Answer:

-14541

Step-by-step explanation:

100 - 121² = 0

100 - 14641

-14541

7 0
3 years ago
Read 2 more answers
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