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
ale4655 [162]
3 years ago
14

The ratio of boys to girls in Anya's class is 10 to 15. There are 20 boys how many girls are there

Mathematics
1 answer:
Crank3 years ago
8 0
The correct answer would be: There are 30 girls in Anya's class. 

The result is this because the given ratio of boys to is 10 to 15. The number of boys is 20 which is 2 times the number given in the ration which means that to get to the number of girls in the class we have to multiply the ration of girls, in this case 15, with two. And this way we get to the number of 30 girls in Anya's class.

For more complicated numbers that cannot be calculated right away, always use the following equation:

A:B=C:x
A*x=B*C
x=B*C/A

Hope it helps :)
You might be interested in
If Tanisha has ​$nbsp 100 100 to invest at 66​% per annum compounded semiannuallysemiannually​, how long will it be before she h
Oxana [17]

Answer:

time is 6.76 years

Step-by-step explanation:

given data

amount = $150

payment = $100

rate r = 6%  = 0.06

to find out

time period t

solution

we know it is compounding continuous

so we will apply here formula that is

amount = payment × e^{rt}   ..........1

put here all value we get

amount = payment × e^{rt}  

150 = 100 × e^{0.06t}  

take ln both side

ln 1.5 =  e^{0.06t}  

0.40546 = 0.06t

t = 0.40546 / 0.06

t = 6.76

so time is 6.76 years

7 0
3 years ago
Help!! Math question
aksik [14]
18 - 7x = -20.52.5 = 7xx = 5/14 (c)


5 0
3 years ago
Read 2 more answers
45 points!
krek1111 [17]

there would be a 99% chance of a red marble being pulled out or even a 1% chance.

because of their being five green marbles and six red there is always a chance you could pull out any one of the colors.

but i believe that both of the answers are 1/2

but im not 100% sure

8 0
3 years ago
Read 2 more answers
a pool is leaking water at a constant rate. The amount of water in the pool changes by -1 1/4 every hour. what is the total chan
malfutka [58]

The total change in the water in the pool after 2 1/2 hours given the rate of leakage is -3 1/8,

<h3>What are fractions?</h3>

A fraction is a non-integer. It is made up of numerators and denominators. A mixed fraction is made up of a whole number and a proper fraction. An example is 2 1/2.

<h3>What is the total change in the water?</h3>

The total change in the water = -1 1/4 x 2 1/2

= -5/4 x 5/2 = -25/8 = -3 1/8

To learn more about multiplication of fractions, please check: brainly.com/question/1114498

6 0
2 years ago
Your sibling has 300% more bracelets than you. They have 18 bracelets. They give you 2 bracelets. How many bracelets do you have
Kisachek [45]

Answer:

2

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • I need help with this question.
    11·1 answer
  • The areas of two similar rectangles are 338 cm2 and 72 cm2. What is the similarity ratio of the perimeters?
    9·2 answers
  • Margie's car can go 3232 miles on a gallon of gas, and gas currently costs $4$4 per gallon. How many miles can Margie drive on $
    14·1 answer
  • making 22 3/4 cups of chowder each cup of chowder holds 7/8 of a cup , the restaurant charges $2.95 per bowl. how much money wil
    14·1 answer
  • Round 45,122 to nearest ten thousand
    11·2 answers
  • Element X decays radioactively with a half life of 6 minutes. If there are 790 grams of Element X, how long, to the nearest tent
    12·1 answer
  • Which is the solution to the equation 2.6 a + 18.4 = 28.8? Round to the nearest tenth if necessary.
    5·2 answers
  • Bill buys a large can of paint. The size of the can measured in which units
    14·2 answers
  • 1. Bob makes $14 per
    14·1 answer
  • 3/4^2 + 1^2 = x2<br><br> solve for x with work shown! pls help!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!