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
madreJ [45]
3 years ago
6

The ratio of boys to girls in a group is 2:1. If there are 18 more boys than girls, work out how many girls there are.

Mathematics
1 answer:
rusak2 [61]3 years ago
4 0
Hey there! I’m happy to help!

Let’s use the variable g to represent the girls. This ratio shows that there are twice as many boys as girls (boys=2g)We also see that there are 18 more boys that girls. Let’s set up an equation

g+18=2g
We subtract 18 from both sides
g=2g-18
We subtract 2g from both sides.
-g=-18
We divide both sides by -1
g=18

Therefore, there are eighteen girls.

I hope that this helps! Have a wonderful day!
You might be interested in
What were some of the challenges pilgrims faced on their journey
EleoNora [17]

On the ocean Pilgrims encounter fierce storms, disease, and their ship falls into disrepair. During the first winter they lack shelter, warmth, and food.

The Pilgrims struggled to build homes, and many families crowded into the few homes that were built. Food was scarce, and many Pilgrims starved to death that first winter.

Hope this helped

3 0
3 years ago
Find two positive numbers so that twice their sum equals their product and one number is 10 times the other number. Enter the sm
Softa [21]

Answer:

Step-by-step explanation:

We'll call the 2 numbers x and y. Starting with the last part of that first sentence "one number is 10 times the other number" can be written, in algebraic form:

y = 10x

Now on to the first statement about the numbers: "twice their sum" is 2(x + y) and "equals their product" is = xy. Putting that all together:

2(x + y) = xy and we know that y = 10x so

2(x + 10x) = x(10x) and

2(11x)=10x^2 and

10x^2-22x=0 and

x(10x - 22) = 0 so

x = 0 or 10x - 22 = 0 which makes

x equal to \frac{22}{10}=2.2

So x = 2.2 and y = 22.

7 0
3 years ago
3/4 is 1/3 of what number? Write a division expression to match this expression
WITCHER [35]
It would be 9/4. To find 1/3 of something you have to multiply it by 3. 9/4 should be considered as a division expression. Hope this helped!
7 0
3 years ago
Consider he following table. Does the table represent a function? Why or why not?
Damm [24]
This is considered a function because each input has a different output. For example, a certain x value doesnt equal 2 different y values, making this a function. Take this: if there is (2,4) and (3,4), this is a function because although the y values are the same, the x values are different. (2,3) and (2,4) do not convey a function because the x values are the same, but each has a different y value.
hope this helped!!!
brainliest answer, please?
6 0
3 years ago
A member was charged 260$usd and then applied for financial aid and received a 30% discount . They reach out and ask for the 30%
sergiy2304 [10]

Answer:

The total charge with the discount is $182

The refund is $78

Step-by-step explanation:

Given data

Charge= $260

Discount=30%

Let us find the amount of the 30%

=30/100*260

=0.3*260

=$78

The new charge after the discount is

=260-78

=$182

The total charge with the discount is $182

The refund is $78

5 0
3 years ago
Other questions:
  • HELP PLZ!!!!!!! Is the following graph a function?
    9·1 answer
  • Solution of the equation
    10·1 answer
  • Help!!! please what's is the figure​
    12·2 answers
  • 6a to the 3/4 power<br> a=16
    7·1 answer
  • What is the rate of change for the line that goes through the points (8,14) and (11, 19.25)​
    12·1 answer
  • The figure shows a parallelogram inside a rectangle outline:
    10·1 answer
  • Identify axis of symmetry
    13·2 answers
  • Two cylinders are shown below. Find the volume of each cylinder. Use 3.14 for pie. Enter your answers rounded to the nearest hun
    14·1 answer
  • I’ll give brainliest
    11·1 answer
  • The tank for a car15 gallon. The gasoline gauge shows the tank is 1/8 full. How much gas is still in the tank
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!