3 years ago

I have no idea how to solve this. Help would me much appreciated.

Mathematics

1 answer:

Otrada [13]3 years ago

7 0

Answer:

Adam is 9 years old.

Step-by-step explanation:

Let d and c represent Adam's and Alicia's ages.

d = c - 15, and

c + 6 = 2(d + 6)

Rearrange d = c - 15 as c = d + 15, and then substitute d + 15 for c in the second equation. We obtain:

d + 15 + 6 = 2(d + 6), or

d + 21 = 2d + 12

Combining like terms, we get 21 = d + 12, or 9 = d.

If d = 9 then c = d + 15, or c = 9 + 15, or c = 24.

Adam is 9 years old.

You might be interested in

What is the square root of 81

Talja [164]

The square root of 81 is 9

6 0

3 years ago

Read 2 more answers

W = 3x + 7y solve for y

mario62 [17]

Answer:

The value of the equation $y=\frac{W-3x}{7}$ .

Step-by-step explanation:

Consider the provided equation.

$W = 3x + 7y$

We need to solve the provided equation for y.

Subtract 3x from both side.

$W-3x= 3x-3x+ 7y$

$W-3x=7y$

Divide both sides by 7.

$\frac{7y}{7}=\frac{W-3x}{7}$

$y=\frac{W-3x}{7}$

Hence, the value of the equation is $y=\frac{W-3x}{7}$ .

8 0

3 years ago

Mathematic 18 don’t understand

Dahasolnce [82]

Answer:

8 x 10¹³ is your answers hopes it's helpful to you

7 0

2 years ago

How to solve this?? (-4)-(-8)+(-4)

kirill115 [55]

(-4) - (- 8) + (- 4)
- 4 - (- 8) + (- 4)
- 4 + 8 + (- 4 )
- 4 + 8 - 4
= 0

6 0

2 years ago

Read 2 more answers

Marina earns $15 for 1 hour of babysitting, $23 for 2 hours of babysitting, and $31 for 3 hours of babysitting. Write a function

Alja [10]

This isn't proportional

5 0

3 years ago

Read 2 more answers