1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kozerog [31]
2 years ago
6

Molly's hair was 20 inches long. Three years later it was 53 inches long. What was the percent increase, to the nearest hundredt

h, of Molly's hair length.
Mathematics
1 answer:
Georgia [21]2 years ago
4 0

Find how much it grew:

53 - 20 = 33 inches.

Divide the amount it grew by the original length

33/20 = 1.65

Subtract 1:

1.65 - 1 = 0.65

Multiply by 100 for percent:

0.65 x 100 = 65%

The percent increase is 65%

You might be interested in
What is the numerator of the simplified sum?
sashaice [31]

Answer:

4x + 6

Step-by-step explanation:

\frac{x}{x² + 3x + 2} + \frac{3}{x + 1}

To determine what the numerator would be, after simplifying both fractions, take the following steps:

Step 1: Factorise the denominator of the first fraction, x² + 3x + 2.

Thus,

x² + 2x + x + 2

(x² + 2x) + (x + 2)

x(x + 2) +1(x + 2)

(x + 1)(x + 2)

We would now have the following as our new fractions to add together and simplify:

\frac{x}{(x + 1)(x + 2)} + \frac{3}{x + 1}

Step 2: find the highest common factor of the denominator of both fractions.

Highest common factor of (x + 1)(x + 2) and (x + 1) = (x + 1)(x + 2)

Step 3: To add both fractions, divide the highest common factor gotten in step 2 by each denominator, and then multiply the result by the numerator of each fraction.

Thus,

\frac{x}{(x + 1)(x + 2)} + \frac{3}{x + 1}

\frac{x + 3(x + 2)}{(x + 1)(x + 2)}

\frac{x + 3x + 6)}{(x + 1)(x + 2)}

\frac{4x + 6)}{(x + 1)(x + 2)}

Therefore, the numerator of the simplified form sum of both fractions = 4x + 6

8 0
3 years ago
Fill in the blank to make a true equation. (-9)(___) = 36 A. - 4 B. 4 C. 6 D. - 6
Artyom0805 [142]

Answer:

Option A, -4

Step-by-step explanation:

<u>Step 1:  Make an equation to represent the problem</u>

(-9)(x) = 36

<u>Step 2:  Solve for x by dividing both sides by -9</u>

-9x / -9 = 36 / -9

x = -4

Answer:  Option A, -4

3 0
2 years ago
9x-7=-7 how do you solve this problem
borishaifa [10]
<span>9x-7=-7 
You would add 7 to both sides because you want to get to the point were your variable is alone. 9x = 0 Then you would dicide each side by 9 because after doing this your variable would be alone. x = 0 would be your final answer. 

YA BOIIIIIIIIIII, DEADPOOL IN THE HOUSE!

-Gives you a thumbs up- </span>
3 0
3 years ago
Read 2 more answers
What is the mean of the data set? {21, 23, 25, 25, 26, 28, 28, 28, 31, 33} 26.8 27 27.8 28
Lerok [7]
In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.

Add up the numbers.

<span>21 + 23 + 25 + 25 + 26 + 28 + 28 + 28 + 31 + 33 = 268

Divide by the number of elements in the set. Which is 10.

268 / 10 = 26.8

So, the answer to this question is 26.8</span>
8 0
3 years ago
Read 2 more answers
If you input 0 into the equation below, what is the resulting y-value?<br> y2+x2+3=4
Kobotan [32]
The answer is the 3 option
5 0
2 years ago
Other questions:
  • What is p-7/12&gt;3/10 please help
    12·1 answer
  • Find the value of each expression. show your work.<br><br> 9^P3<br><br> and<br><br> 10^C4
    8·1 answer
  • Write an equation for a horizontal line that passes that (4, -2)
    6·1 answer
  • Find the mean, median, and mode. Round to the nearest tenth when necessary.
    8·2 answers
  • A car insurance company has determined that 66​% of all drivers were involved in a car accident last year. Among the 1010 driver
    10·1 answer
  • Which one is it pls help i dont understand
    15·2 answers
  • !!!!!!!!!!!!!!!!!!!!
    10·2 answers
  • Pleas awnser at least one
    5·1 answer
  • What is the value of p?
    5·1 answer
  • Thomas bought two and one half dozen eggs costing 45.00. He sold each eggs for 2.00. Did he make a profit or a loss and by how m
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!