Literal Equations Review 1.5

Solve for W: A = LW

• A - L = W

• A + L = W

•  $\frac{A}{W}$  = L
  

•  $\frac{A}{L}$  = W

Solve for B: XY = BC

• $\frac{XY}{C}$ = B

• XY - C = B

• XY + C = B

• XYC = B

Solve for y: 5x + 8y = 12

• 
  

  $\frac{-5x\ -\ 8}{8}$

• $\frac{8y\ +\ 12}{5}$

• $\frac{-5x\ +\ 12}{8}$

• $\frac{-8y\ +\ 12}{5}$

Solve for y: -10x + 6y = - 11

• $y\ =\frac{\ -6y\ -\ 11}{10}$

• y = $\frac{10x\ -\ 11}{6}$

• y = $\frac{-10x\ -\ 11}{6}$

• $y\ =\ \frac{\ 10x\ -\ 11}{6}$

Charlie invest $500 in Apple stocks. It returned a 6%interest rate for the month of August. He kept it active for 4 years. How much interest did Charlie make?

Use I = prt

In the formula I = prt, what does p stand for?

• principal

• perimeter

• parenthesis

• power

Bryce borrows $20,000 to buy a truck. He pays 3.5% interest rate and borrows the money for 5 years. How much interest does Bryce pay? Use I = prt

What does I stand for in the formula I = prt

• Intercept

• Integral

• Interest

• Integer

Kelley wants to purchase a new MAC at Best Buy. She is going to borrow $1200 for her grandma. She will pay a 4% interest rate and pay $96 in interest. How many years will it take her to pay back the money?

• 1 years

• 3 years

• 2 years

• 4 years

Mr. Williams deposited $6500 in his savings account where he earned $97.50 in interest after he leaves the money in there for 3 years. What was his interest rate? Use I = prt.

• 0.005%

• 0.05%

• 0.5%

• 5%