3 years ago

Anybody know how to do this? Solve for RT.

Mathematics

1 answer:

loris [4]3 years ago

7 0

Answer:

Step-by-step explanation:

x + 21 = 3x - 15

- x - x

21 = 2x - 15

+ 15 + 15

36 = 2x

/ 2 / 2

18 = x

2 (x + 21)

2 (18 + 21)

36 + 42

You might be interested in

Write the equation of the line with a slope of 3 and y intercept of -5.

I am Lyosha [343]

$\huge{\boxed{y=3x-5}}$

We will write this equation in slope-intercept form, which is $y=mx+b$ , where $m$ is the slope and $b$ is the y-intercept.

Substitute in the values. $y=3x+(-5)$

Simplify the negative addition. $\boxed{y=3x-5}$

8 0

3 years ago

Help me on 5 and 6 plssssss

Alex Ar [27]

For number 5, you just plug -2 into x. We now have g(-2)=3(-2)+1. This gives us g(-2)=-5.

This is the same for 6. h(-6)=-3(-6)-2. This gives us h(-6)=16.

The answer is g(-2)=-5. The other answer is h(-6)=16.

5 0

2 years ago

Out of a random sample of 2,000 people in the United States, 168 reported making more than $75,000 a year. Calculate the sample

Mandarinka [93]

Answer:

The sample proportion is 8.4%.

Step-by-step explanation:

The sample proportion f people in the United States who earn more than $75,000 each year is the number of people who reported earning more than $75,000 each year divided by the size of the sample.

The proportion is:

$P = \frac{168}{2000} = 0.084$