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tester [92]
3 years ago
13

Maggie’s brother is three years younger than twice her age. The sum of their ages is 24. How old is maggie?

Mathematics
2 answers:
JulsSmile [24]3 years ago
8 0

To solve this problem, we must set up a system of equations. In this case, let's let Maggie's age be represented by the variable m and her brother's age be represented by the variable b. We are told that the sum of their ages is 24, which gives us our first equation: m + b = 24. We can construct our next equation from the first sentence of given information: b = 2m - 3. This makes our system of equations:

m + b = 24

b = 2m - 3

To solve, we are going to substitute the value for b in terms of m given by the second equation into the first equation for the variable b.

m + b = 24

m + 2m - 3 = 24

To simplify, we must first combine the variable terms on the left side of the equation using addition.

3m - 3 = 24

Next, we should add 3 to both sides of the equation to get the variable term alone on the left side of the equation.

3m = 27

Finally, we should divide both sides by 3 in order to get the variable m alone.

m = 9

Therefore, Maggie is 9 years old (using the first equation and substituting in this value you can find that her brother is 15 years old).

Hope this helps!

svlad2 [7]3 years ago
7 0
Take Maggie’s age as x
Then maggie’s brother’s age is 2x-3

Using the given data, form an equation
Maggie’s age + Her brother’s age = 24
x + 2x-3 = 24
3x= 27
x= 9

Hence Maggie is 9 years old :)
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Three friends are travelling by aeroplane and want to pay as little as possible in total for their luggage.
In-s [12.5K]

Answer:

B.25$

Step-by-step explanation:

to make the money less one of the freinds will carry 9kg and the other 12 kg the last one carries the left luggage weighing 7kg and 6kg which add up to 13kg.

the first freind won't pay anything as he is passing 9kg luggage

the second will pay : 12-10 =2 so 2kg*5$=10$

the last freind will pay 13-10=3 so 3kg*5$=15$

to find the total money the pay we will add 10$ and 15$ which became 25$.

hope this helped.

4 0
2 years ago
If you deposit $5000 at the end of each year for 30 years using an annual interest rate of 9% compounded annually, how much mone
hichkok12 [17]
$163,500

5000(0.09) x 30 = 13,500
5000 x 30 = 150,000
Altogether 163,500
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3 years ago
Find the difference in length between a walking stick and a bumblebee
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A walking stick is way longer than a bumble bee
4 0
3 years ago
Read 2 more answers
What is the standard form of the following equation?
scZoUnD [109]

y = 2(x - 1)² + 4

y = 2(x² - 2x + 1) + 4

y = 2x² - 4x + 2 + 4

y = 2x² - 4x + 6

7 0
2 years ago
Answer correctly for brainliest and also a thanks ! Don't answer if you don't know it please !
Drupady [299]
The answer is B for increase of one year the events increase by 0.5

You can do this by using the eqn

y=0.5x-1.3
y=0.5(15)-1.3
y = 7.5-1.3
y = 6.2

y=0.5(16)-1.3
y=8-1.3
y=6.7

6.7-6.2 = 0.5
5 0
3 years ago
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