A group of parents is planning an end-of-year party for the eighth grade class at Ridgeway

Write word problem to match (2x5) x (3x15)

saveliy_v [14]

Parathese two times five parathese times parathese three times fifteen parathese

7 0

3 years ago

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What is the solution to 4(x-1)-2(3x+5)=-3x-1

Margarita [4]

To solve this problem, we need to get the variable x alone on one side of the equation. To begin, we are going to use the distributive property twice on the left side of the equation to expand the multiplication and get rid of the parentheses.

4(x-1) - 2(3x + 5) = -3x -1

4x - 4 -6x - 10 = -3x - 1

Next, we should combine like terms on the left side of the equation. This means we should add/subtract the variable terms and the constant terms in order to simplify this equation further.

-2x - 14 = -3x - 1

Then, we have to add 3x to both sides of the equation to get the variable terms all on the left side of the equation.

x - 14 = -1

After that, we should add 14 to both sides of the equation to get the variable x alone one the left side of the equation.

x = 13

Therefore, the answer is 13.

Hope this helps!

4 0

3 years ago

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How to solve using substitution

DiKsa [7]

X+5 = x^2 - x + 2
0 = x^2 -2x - 3
0 = (x-3)(x+1)

x = -1,3

y = -1 + 5 OR y = 3+5
y = 4 OR y = 8

y = 4,8

So we have two ordered pairs, (-1,4) and (3,8).

Hope that helped!

can you mark my answer as brainliest btw?

4 0

3 years ago

What is the value of x

Nesterboy [21]

Answer:

$x = 2$

Step-by-step explanation:

First simplify the equation.

$\frac{7}{9}x -\frac{4}{9} =\frac{1}{4} +\frac{5}{12}$
$\frac{3}{9}x= \frac{3}{12} +\frac{5}{12}$
$\frac{3}{9}x=\frac{8}{12}$
$\frac{1}{3}x=\frac{2}{3}$

Now multiply both sides by 3.

$x = 2$

I hope it helps you. Please choose my answer as the BRAINLIEST.

7 0

3 years ago

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PLEASE HELP :) LOTS OF POINTS + BRAINLY

pogonyaev

Jackson's method to figure out the height of the mountain is from the

similar triangles formed by the light using the mirror.

Response:

The height of the mountain is <u>50 feet 8 inches</u>

<h3>Which methods can used to find the height of the mountain?</h3>

The given parameters are;

Distance of the mirror from Jackson = 5 feet

Distance of the mirror from the base of the mountain = 40 feet

Height of Jackson = 6'4'' tall

Required:

The approximate height of the mountain, <em>h</em>

Solution:

The triangles formed by the light from the top of the mountain which is

reflected to Jackson from the mirror, Jackson's height, the height of the

mountain, and their distances from the mirror, are similar triangles.

The ratio of corresponding sides of similar triangles are equal, therefore,

we have;

$\dfrac{Jackson's \ height}{Jackson's \ distance \ from \ the \ mirror } =\mathbf{ \dfrac{Height \ of \ the \ mountain}{Distance \ of \ the \ mountain \ from \ the \ mirror}}$

Which gives;

$\dfrac{6\frac{1}{3} \, ft.}{5 \, ft.} = \mathbf{ \dfrac{h}{40 \, ft.}}$

$h = 480 \, in. \times \dfrac{76 \, in.}{60 \, in.} = 608 \, in. = \mathbf{50 \frac{2}{3} \, ft. = 50 \, feet \ 8 \, inches}$

The height of the mountain is approximately <u>50 feet 8 inches</u>

Learn more about similar triangles here:

brainly.com/question/23467926

4 0

2 years ago