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
Aleks04 [339]
3 years ago
13

The ratio of the number of A's in the class to B's in the class was 2:5. How many people got A's if there were 40 people who got

B's?
Mathematics
2 answers:
Umnica [9.8K]3 years ago
7 0

Answer:

16 students got an A

Step-by-step explanation:

Set up an equation to compare the ratio to the scores:

\frac{2}{5} = \frac{x}{40}

Cross multiply:

80 = 5x

Divide each side by 5:

x = 16

Now, check if \frac{16}{40} = \frac{2}{5}

16/8 = 2

40/8 = 5

The ratios are the same! Therefore, 16 students got an A!

Hope this helps! Feel free to contact me if you have any questions :)

oksano4ka [1.4K]3 years ago
3 0

Total- no- of- students = 56\\A -students = Total- no- of- students - B-students\\A - students = 56 - 40\\A students = 16Answer:

A Students = 16 students

Step-by-step explanation:

A :B\\2 :5\\ No- of -A -students =?\\No- of -B -students = 40\\2+5 =7\\\frac{5}{7} *x = 40\\\frac{5x}{7} =40\\Cross - multiply\\280 = 5x\\Divide-both-sides-of-the-equation -by 5\\\\\frac{280}{5}  =   \frac{5x}{5} \\x = 56

You might be interested in
What is the midpoint of a line segment with endpoints at (6, -4) and (15,8)?
german

Answer:

Look at the attachment

8 0
3 years ago
Determine the number of significant figures in each of the following numbers
Strike441 [17]

Answer:

9.99999999999999 apk

6 0
3 years ago
HELP ASAP
GaryK [48]

Answer:

.......................

3 0
3 years ago
Help!!
klio [65]

Answer:

The answer is 14.

Step-by-step explanation:

Since all of the angles of a triangle add up to be 180, then all you have to do is add the 2 angles together that you have and subtract that number from 180. For example 141+25=166, so, 180-166=14. 14 would be the measure of the third angle.

5 0
3 years ago
6. The function
motikmotik
Creo que la respuesta es C. No soy bueno con el inglés, pero eso es lo que pienso. Lo siento si está mal.
4 0
3 years ago
Other questions:
  • Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only)
    11·1 answer
  • Starting in the blue square, in how many different ways can you draw a line that passes through every square without picking up
    7·1 answer
  • COMMUNICATION In 1996, there were 171 area codes in the United States. In 2007, there were 215. Find the rate of change from 199
    9·2 answers
  • A contest on a game show has 30 points.she answers a question correctly to win 15 points.the she answers a question incorrectly
    11·1 answer
  • What can you tell about the rate of the two reactions shown in the graph? A. They occurred at the same rate. B. One reaction sta
    15·1 answer
  • Answer plz Nina has a collection of 20 seashells she wants to display in rows List all of the ways that nina can display her she
    10·1 answer
  • Tina recorded the number of calories she burned during a bike ride. The graph shows Tina’s calories burned, y, after x hours. If
    8·1 answer
  • please do my question u get more points if the answer is right. if inappropriate you get reported NO LINKS and please EXPLAIN
    15·1 answer
  • 5x-5y+4z=15<br> 3x+5y-6z=7<br> -x+5y-5z=20
    10·1 answer
  • Mr. Johnson orders 250 keychains printed with his athletic team’s logo and 500 pencils printed with their Web address. Write an
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!