12.03.2019 Pre-Algebra

Which proportion can be used to solve the problem below?

It takes 8 hours to drive 440 miles. How long does it take to drive 243 miles?

• $\frac{8}{440}=\frac{h}{243}$

• $\frac{8}{440}=\frac{243}{h}$

• $\frac{243}{440}=\frac{8}{h}$

• $\frac{243}{440}=\frac{h}{8}$

Brielle's checkbook had a balance of $347.82 on December 2. On December 3, she wrote a check for $57.23 at Bath & Body Works. On December 12, she wrote a check for $152.00 for her electric bill. On December 15, her best friend gave her $25.00 as a gift, and she deposited this into her account.

What is the balance of Brielle's account after this deposit?

• $163.59

• $372.82

• $532.05

• $113.59

If a pair of mittens costs $8.00 before a sale and $4.80 after a sale, what is the percent of change?

• 40% decrease

• 40% increase

• 67% decrease

• 67% increase

Solve for x:
5x - 14 = 8x + 4

• x = 6
• x = -6
• x = -18/13
• x = 10/3

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Which of the following statements are true?

• 4(x + 3) = 4x + 12

• $\frac{1}{3}\left(9x\ -12\right)\ =\ 3x-4$

• 8(x - 3) = 8x - 3

• - (x + 2) = -x - 2

• 3(2x + 6) = 6x - 18