SAT week 1 math

Question 1

If m - n = 9, and 3n = 12, what is the value of m + n?

Accepted Answer

17

Question 2

The town started w/ 45 miles of road in 2014 & has been building 8 miles per year. How many miles will there be in 2030?

Accepted Answer

173

Question 3

If 4ax + 4b + 8 = 20, what is the value of ax + b?

Accepted Answer

3

Question 4

C = 30 + 10x estimates babysitting charges, with x being total hours. If you earn $90, how many hours did you work?

Accepted Answer

6 hours

Question 5

Which of the following is equivalent to (x2 -7) - (-4x2 + 2)

Accepted Answer

5x2 - 9

Question 6

y = $100.00 + $50x represents the cost for renting an Air B&B. What does the y intercept represent?

Accepted Answer

$100 flat fee

Question 7

In the equation (ax + 2)2 = 64, a is a constant. If x = 2 is one solution, what is a possible value of a?

Accepted Answer

3

Question 8

A town starts with 45 miles of paved roads, then begins adding 8 miles per year. What is this function?

Accepted Answer

f(x) = 45 + 8x

Question 9

If the town's been building 8 miles per year since 2014 (starting with 45), in what year will they have at least 250?

Accepted Answer

2040

Question 10

Which ordered pairs satisfy 2x + 6y < 15? I. (3, 1) II. (1, 1) III. (10, 1)

Accepted Answer

I and II only

Question 11

If V = (w - 3)/32, what is w in terms of V?

Accepted Answer

32V + 3

Question 12

To edit a book, Joe charges $50 for the 1st 2 hours and $20 per hour after that. Which shows how much he charges?

Accepted Answer

C = 20x + 50

Question 13

A line passes through (2,8) and (1, -3). What is the slope of this line?

Accepted Answer

11

Question 14

If 5x + 1 = 21, what is the value of x + 7?

Accepted Answer

11

Questions 14