SAT Review Algebra

​x+y​​=0
3x−2y​​​=10​​
Which of the following ordered pairs (x,y) satisfies the system of equations above (CI)

• (3, -2)

• (2, -2)

• (-2, 2)

• (-2, -2)

What is the inverse of the function y = 4x + 5?

What statement is true regarding Emmeline's work?

• Emmeline's work is entirely correct.

• There is a mistake in step 2, only.

• There are mistakes in step 2 and step 4.

• There is a mistake in step 4, only.

• 8

• 2

• 1/2

• 1/8

Monthly mortgage payments can be found using the formula below, where M is the monthly payment, P is the amount borrowed, r is the annual interest rate, and n is the total number of monthly payments.
If Adam takes out a 15-year mortgage, borrowing $240,000 at an annual interest rate of 4.5%, his monthly payment will be

• $1379.09

• $1604.80

• $1835.98

• $9011.94

Answer explanation

n = 15 x 12 = 180

Which of the following is a solution to the graphed system of inequalities?

• (-3, -4)

• (3 , 1)

• (1, 3)

• (5 , 0)

If 7x - 11 = 45, what is the value of x?

• x = 8

• x = 12

• x = 6

• x = 10

If 4x + 25 = 89, what is the value of x?

• x = 16

• x = 20

• x = 10

• x = 15

Andre sells candy bars and popcorn. The expression 1.25c + .75p gives the cost, in dollars, or c candy bars and p bags of popcorn. What is the cost, in dollars, of 10 candy bars and 5 bags of popcorn?

• 20.50

• 16.25

• 10.25

• 15.75

Andre sells candy bars and popcorn. The expression 2.25c + 1.50p gives the cost, in dollars, or c candy bars and p bags of popcorn. What is the cost, in dollars, of 10 candy bars and 5 bags of popcorn?

• 31.25

• 15.75

• 20.50

• 25.25