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3 years ago

7

-2x+3=15? What is the answer

1 answer:

const2013 [10]3 years ago

5 0

-2x+3=15

Subtract 3 from both sides:

-2x=12

Divide -2 from both sides:

X=-16 is your answer

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Simon used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 time

morpeh [17]

Answer:

360/2500

Step-by-step explanation:

the blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500

4 0

3 years ago

Find the measure of each exterior angle of a regular<br> 15-gon.

sammy [17]

The measure of each exterior angle of a regular 15-side polygon is

24°

Step-by-step explanation:

In any regular polygon

All sides are equal in lengths
All angles are equal in measures
The measure of each interior angle = $\frac{(n-2)*180}{n}$ , where n is the number of its sides
The measure of each exterior angle = $\frac{360}{n}$
The interior angle and the exterior angle at any vertex are supplementary

∵ The polygon is regular

∵ It has 15 sides

∴ n = 15

∵ The measure of each exterior angle = $\frac{360}{n}$

∴ The measure of each exterior angle = $\frac{360}{15}$

∴ The measure of each exterior angle = 24°

The measure of each exterior angle of a regular 15-side polygon is

24°

Learn more:

You can learn more about polygons in brainly.com/question/6281564

#LearnwithBrainly

3 0

3 years ago

PLZ ANSWER QUICKLY, WILL GIVE THE BRAINLIEST AND 25 POINTS!

valkas [14]

We are given that ratio of cars Sam has built to cars Tyrone has built is 3:4.

Let us assume that Sam built $3x$ cars and Tyrone built $4x$ .

Since we are given that total number of cars they built is 42. Therefore, we can set up:

$3x+4x=42\\
7x=42\\
x=6$

Therefore, Sam built $3x=3(6)=18$ cars and Tyrone built $4x=4(6)=24$ cars.

6 0

3 years ago

Read 2 more answers

Is it correct to write "80.3°"?

Hoochie [10]

Answer:

Yes! Temperature degrees are just like measurements.

7 0

3 years ago

Which expression is equivalent to x + x + 4y?

Harrizon [31]

Answer:

$2x + 4y$ , There are many more "equivalent" expressions such as $1x+1x+4(y)$ or $2(x)+4(y)$ .

Step-by-step explanation:

Combine like terms for the 2 "x".

$x+x+4y=2x+4y$

That is your most simplified expression.

$2x + 4y$

5 0

3 years ago