All categories

3 years ago

MATH HELP PLEASE !50 POINTS!

Mathematics

2 answers:

docker41 [41]3 years ago

7 0

Answer: 108

Step-by-step explanation: You take the x and the 2/3x and combine them to get 1 2/3x, so 1 2/3x=180. 180 divided by 5 is 36, and 36 times three is 108

Sophie [7]3 years ago

7 0

Answer:

108

Step-by-step explanation:

Angles on a line add up to 180 degrees.

x + 2/3x = 180

5/3x = 180

x = 180 × 3/5

x = 108

You might be interested in

Find the solution of the system of equations. 4x – 2y = -6 x + 4y = -24

Zielflug [23.3K]

Answer:

-4,-5

Step-by-step explanation:

Looking at the system of equations, I can't see any way to add the equations together to eliminate a variable. So, I decided to use substitution. First, I created 2 new equations, x = -24 - 4y and Y=2X+3 by rewriting each equation to solve for x and y. Now, I can take one of these equations and insert it in the opposite equation and solve for a variable.

4(-24 - 4y) - 2y = -6

-96 -16y -2y = -6

-18y = 90

y = -5

Now, I can just insert this in one of my equations and solve for x, and get my solution, which gets me x = -4

5 0

3 years ago

9. What is the scale factor of the dilation?

hodyreva [135]

Answer:

Step-by-step explanation:

The scale factor is the ratio of the corresponding sides, image to original, that is

scale factor = $\frac{P'S'}{PS}$ = $\frac{6}{3}$ = 2 → D

5 0

3 years ago

Solve for x. 2x = 15 + x A: x = -15 B: x = 15 C: x = -15/2 D: x = 15/2

Ulleksa [173]

2x = 15 + x

First, our goal is to get 'x' to equal something by itself. To do so, we will have to do everything on one side. Let's subtract 'x' from each sides.
$2x - x = 15$

Second, our next step is to subtract '2x - x'. Since 'x' is basically considered (1), it will equal 'x'.
$x = 15$

Answer: $\fbox { x = 15 }$

3 0

3 years ago

What’s the rational number has -0.875 as its decimal equivalent

Fynjy0 [20]

Get rid of the decimal first.
-0.875*1000
-875/1000=-0.875
Simplify it since both denominator and numerator is divisible by 5
1/5(-875/1000)
-175/200
Still divisible by 5
1/5(-175/200)
-35/40
Keep going
-7/8
There, now it can’t be more simplified.

8 0

3 years ago

I'm Mrs.Moores class, the ratio of boys to girls is 4:6. If there are 30 students in the class, how many girls are in class?

liubo4ka [24]

Answer:

Step-by-step explanation:

6×5=30

6*4=24

you have to find more then half which would be 3:6 so it's more then 15 but less then 30

5 0

3 years ago