All categories

3 years ago

Maggie’s brother is 3 years younger than four times her age. The sum of their age is 22 how old is maggie

Mathematics

1 answer:

gayaneshka [121]3 years ago

8 0

Hey there!

Let's write this as a system of equations.

m+b=22

b= 4m-3

Let's plug our value for b into the first equation and solve for m.

m+4m-3=22

We combine like terms.

5m-3=22

We add 3 to both sides.

5m=25

We divide both sides by 5.

m=5

Therefore, Maggie is 5 years old.

I hope this helps!

You might be interested in

Based on the graph, in which two months

Rudiy27

Answer:

Where is the graph?

Step-by-step explanation:

5 0

2 years ago

A rectangular pyramid is sliced so the cross section is perpendicular to its base but does not pass through its vertex.

Murrr4er [49]

Rectangle, hope i helped :)

7 0

3 years ago

What is true about the figure below?

VARVARA [1.3K]

Answer:

the answer is b

Step-by-step explanation:

7 0

2 years ago

Can anyone help me find the coordinates (?,?) given that the shape is a parallelogram? (15 points)

xxTIMURxx [149]

The missing coordinates of the parallelogram is (m + h, n).

Solution:

Diagonals of the parallelogram bisect each other.

Solve using mid-point formula:

$$\text{Midpoint} =\left( \frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right )$

Here $x_1=m, y_1=n, x_2=h, y_2=0$

$$=\left( \frac{m+h}{2}, \frac{n+0}{2}\right )$

$$\text{Midpoint} =\left( \frac{m+h}{2}, \frac{n}{2}\right )$

<u>To find the missing coordinate:</u>

Let the missing coordinates by x and y.

Here $x_1=0, y_1=0, x_2=x, y_2=y$

$$\text{Midpoint}=\left( \frac{0+x}{2}, \frac{0+y}{2}\right )$

$$\left( \frac{m+h}{2}, \frac{n}{2}\right )=\left( \frac{0+x}{2}, \frac{0+y}{2}\right )$

$$\left( \frac{m+h}{2}, \frac{n}{2}\right )=\left( \frac{x}{2}, \frac{y}{2}\right )$

Now equate the x-coordinate.

$$ \frac{m+h}{2}=\frac{x}{2}$

Multiply by 2 on both sides of the equation, we get

m + h = x

x = m + h

Now equate the y-coordinate.

$$\frac{n}{2} = \frac{y}{2}$

Multiply by 2 on both sides of the equation, we get

n = y

y = n

Hence the missing coordinates of the parallelogram is (m + h, n).

5 0

3 years ago

Help me pleaseeeeeeee

puteri [66]

It would be the 30/3 one

7 0

3 years ago