All categories

3 years ago

Katelyn bought 81 socks in 9 different colors. She bought the same amount of

Mathematics

1 answer:

horrorfan [7]3 years ago

8 0

Answer:9

Step-by-step explanation:81 divided by 9=9

You might be interested in

The denominator of a fraction is 10 more than its numerator.

Dennis_Churaev [7]

The right answer is Option C : 5

Step-by-step explanation:

Let,

The numerator of fraction = x

The denominator of a fraction is 10 more than its numerator.

$\frac{x}{x+10}$

When 1/3 is added to this fraction,

$\frac{x}{x+10}+\frac{1}{3}$

the resulting fraction’s denominator is three times the denominator of the original fraction its numerator is 15 less than its denominator

$\frac{3(x+10)-15}{3(x+10)}$

Therefore, it becomes

$\frac{x}{x+10}+\frac{1}{3} = \frac{3(x+10)-15}{3(x+10)}$

Taking LCM on left side

$\frac{3x+(x+10)}{3(x+10)}=\frac{(3x+30)-15}{3(x+10)}\\\\\frac{3x+x+10}{3(x+10)}=\frac{3x+30-15}{x(x+10)}\\\\\frac{4x+10}{3(x+10)}=\frac{3x+15}{3(x+10)}$

Multiplying both sides by 3(x+10)

$3(x+10)*\frac{4x+10}{3(x+10)}=\frac{3x+15}{3(x+10)}*3(x+10)\\4x+10=3x+15\\4x-3x=15-10\\x=5$

The numerator of original fraction is 5.

The right answer is Option C : 5

Keywords: fraction, addition

Learn more about fractions at:

#LearnwithBrainly

8 0

3 years ago

five friends went to a baseball game three of the friends each bought a ticket for x dollars and a soda for $6.00 .The other two

sergeinik [125]

X = tickets bought

3(x+6) + 2x

6 0

3 years ago

Simplify the expression 4(-y+2) -3y

trapecia [35]

Answer:

−7y+8

Step-by-step explanation:

1. Simplify each term.

−4y+8−3y

2. Subtract 3y from −4y.

−7y+8

Hope this helps :D

3 0

2 years ago

Can you show me how to solve 33=-2a+7

Klio2033 [76]

33=-2a+7
33-7=26
-2xa=26
26 divide -2=-13
a=-13
I believe

7 0

3 years ago

Mary decreased her time for the mile walk from 30 minutes to 24 minutes. What was the percent of decrease?

I am Lyosha [343]

Answer:

20%

Step-by-step explanation:

Formula:

((GreaterTime-LeastTime)/Greatertime)x100= Percentage of Decrease.

((30-24)/30)*100=percent of decrease.

(6/30)*100=percent of decrease.

0.2*100= percent of decrease.

20%.

Hope this helps you :D

6 0

3 years ago