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Mandarinka [93]
3 years ago
8

Simplify and determine the coefficient of (-2/5x) (5y) (-2x)

Mathematics
2 answers:
slamgirl [31]3 years ago
7 0
The answer is 4 x^2y. <em> I cannot explain to you how I know I'm right. I'm the type of person who HAS to do the work in their head . I am a very experienced person in any Mathematics area. I am NOT saying I'm an expert , but it is one of my strongest subjects . </em>

AfilCa [17]3 years ago
4 0

Answer:

4y

Step-by-step explanation:

Parenthesis means they are multiplied , so writing all the top(numerator) values in top and bottom(denominator) values in bottom we get

\frac{-2*5y*(-2x)}{5x}

simplify by cancelling the common factor 5 and x from top and bottom

we get

4y

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N-8+n=1-4n solve for n​
MrRissso [65]

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Step-by-step explanation:

3 0
3 years ago
Lynn has a box of crayons.
Scrat [10]

Answer:

<em>There are 72 crayons in the box</em>

Step-by-step explanation:

<u>Fractions</u>

To solve this problem we'll manage numbers as fractions to keep the precision up to the end of it.

Lynn has a box of crayons. It's given 4/9 of the crayons are blue. The remaining crayons are:

1-\frac{4}{9}=\frac{5}{9}

From that portion, 65% are red, or equivalently, 35% are yellow.

We write 35% as a fraction:

\displaystyle 35\%=\frac{35}{100}=\frac{7}{20}

Thus, the portion of yellow crayons is:

\displaystyle \frac{7}{20}\cdot \frac{5}{9}=\frac{7}{36}

This fraction of x crayons is equal to 14, thus:

\displaystyle x=\frac{14}{\frac{7}{36}}=14\cdot\frac{36}{7}

x = 72

There are 72 crayons in the box

7 0
3 years ago
HELP ME ANSWER THIS PLEASE!!!!! WILL GIVE BRAINLIEST
Alex777 [14]
Black socks on monday - 3/9 or .33%.
white socks on tuesday - 5/9 or .55%

Explanation: Probability of black socks on Monday:
Total pair of socks: 1 + 3 + 5 = 9
Number of black socks on Monday: 3
3/9 = 1/3 (or divide to get a percentage)

Probability of white socks on Tuesday:
Total pair of socks: 9
Number of white socks on Tuesday: 5
5/9
5 0
3 years ago
Read 2 more answers
12. When 64 is divided by x, the quotient is a negative
sergey [27]
J. -8 is the correct answer
8 0
3 years ago
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