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
alexdok [17]
3 years ago
7

The ratio of boys to girls in the 10th grade is 8 to 13. If there are 91 girls in 10th grade, then how many boys are there?

Mathematics
1 answer:
IRINA_888 [86]3 years ago
6 0

Answer: There are 56 boys in the 10th grade

Step-by-step explanation:

Step 1

ratio of boys to girls in the 10th grade is 8 :13

Number of girls= 91

To find the number of boys, we first find the total number of boys and girls in the 10th grade

Step 2

Now the total ratio= 8 +13=21

Number of girls = ratio of girls/ total ratio  x  Total number of students

91=13/ 21  x  Total number of students

Total number of students =21 x 91 / 13  =147

Step 3

Therefore Number of boys =ratio of boys/ total ratio  x  Total number of student

8/21 x 147=56

You might be interested in
Fill in the blanks and explain the pattern.<br><br> XA, XB, XC, __,__,__
Anit [1.1K]

Answer:

XD,XE,XF

Step-by-step explanation:

XA,XB,XC,XD,XE,XF

IT IS BECAUSE OF THE ALPHABETICAL ORDER AFTER X

8 0
3 years ago
Based on the table, which best predicts the end
juin [17]
Mark you want me to tell him I can send you a photo of the photo you sent you send you
8 0
3 years ago
An antique has a price tag of $150. The sales tax rate for the county is 8%. How much sales tax will be due?
vampirchik [111]

Answer:

12

Explanation:

8% is equal to 0.08

Multiply 150 by 0.08 and you will get 12

3 0
3 years ago
Last year, Maria had $10,000 to invest. She invested some of it in an account that paid 6% simple interest per year, and she inv
denis-greek [22]

Answer:

$3,000 invested at 6%

$7,000 invested at 10%

Step-by-step explanation:

Maria had total $10,000 to invest.

Let x be the amount that Maria invested initially at 6% interest rate.

0.06x

Then she invested the remaining amount at 10% interest rate.

0.10(10,000 - x)

She received a total of $880 in interest.

0.06x + 0.10(10,000 - x) = 880

0.06x + 1000 - 0.10x = 880

-0.04x = 880 - 1000

-0.04x = -120

0.04x = 120

x = 120/0.04

x = $3,000

This is the amount that Maria invested initially at 6% interest rate.

The remaining amount is

10,000 - 3,000

$7,000

This is the remaining amount that she invested at 10% interest rate.

3 0
3 years ago
Which undefined terms are needed to define parallel lines
Assoli18 [71]

First off, Parallel lines are two lines that lie within the same plane and never intersect, So the undefined terms that are needed to define a parallel line are Lines, planes.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Box 2:
    9·2 answers
  • What does x equal, I'm struggling with this?​
    12·1 answer
  • Of 150 adults selected randomly from one town, 30 of them smoke. Construct a 99% confidence interval for the true percentage of
    13·1 answer
  • Find the percent of the number.<br> 30% of 30 is<br> Explain your method.
    15·2 answers
  • What are possible outcome of a spin of the spinner
    7·1 answer
  • Express this number in scientific notation .0002077
    10·2 answers
  • PLEASE HELP FAST Its in the photo below
    7·1 answer
  • Store A sells boxes of rice for $2.50 each.
    6·1 answer
  • Alisha received a fruit basket as a thank you gift and it had 18 tangerines, 4 pears, 2 plums, 6 bananas, and 3 peaches. Write t
    15·1 answer
  • Pls help me on this asap
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!