April 12 Math I

2x + 3(5x - 7) = 47

• x = 1
• x = 2
• x = 3
• x = 4

-11 + 3(b + 5) = 7

• b = 1
• b= -1
• b = 3
• b = -3

2. Cheryl gets paid $8 per hour for her job at the record store.  She made a total of $96 last week.  Which equation models this situation?

• 96h = 8
• h/96 = 8
• 8h = 96
• h/8 = 96

Write an equation models the following statement:
 17 less than h equals 42

• 17-h=42
• h-17=42
• h+17=42
• 17+h=42

Write an equation models the following statement:
 17 less than h equals 42

• 17-h=42
• h-17=42
• h+17=42
• 17+h=42

Which choice describes the step needed to isolate the variable? (Tap outside of the gray box to see the equation.)

• Divide both sides by 11
• Multiply both sides by 11.
• Add 11 to both sides.
• Subtract 11 to both sides.

2x - 3 + 4x = 27

• x= 12
• x = 4
• x = 5
• x = 15

Simplify 5x + 3 -2x + 1

• 7x² +4
• 5x+1
• 7x + 4
• 3x+4

Simplify 
2(x +4) + 5(x+6)

• 2x+ 38
• 10x + 240
• 7x +38
• 6x² + 7x

It costs $25 to rent a car each day and $0.95 per mile. 
Which expression represents the cost of the rental for one day?

• .95x + 25
• .95 + x + 25
• .95 + 25x