Review CMS

A submarine is at a depth of 590 meters below sea level. It descends 64 meters. What is the new depth, in meters, of the submarine?

*add the meters below with each other

• -654 meters

• 7 meters

• -590 meters

• 64

Tammy is having her car repaired. The cost of the parts is $260 and 8 hours of work are required. Tammy needs to keep the entire cost of the repair under $500. Which inequality expresses the relationship between hourly cost (x), parts, and the $500 limit?

• 1,875.32 days

• 365.25 days

• 2,464.35 days

• 234.7 days

Y axis miles

X axis hours

Hudson traveled 6 miles in his kayak in 4 hours.

Mr. Ngonu placed a cup containing 90 erasers on his desk in his classroom on Monday. Each day for 6 days, his students removed the same number of erasers from the cup. At the end of the third day, there were 36 erasers left in the cup. Which equation can be used to find the number of erasers the students removed from the cup each day?

• 90 - 6n = 36

• 90 - 36n = 6

• 90 x 6 - 36 = n

• 90 x 6 - n = 36

Which inequalities are true when x = – 16?

• 6x + 16 > -32

• • -2x + 18 > 24

Place the following expressions in order from LEAST to GREATEST based on the differences.

-12 - (-16), -3.8 - 8.6, 5.0 -16

• -12 - (-16)

• -3.8 - 8.6

• 5.0 -16

Juan and Ko each have a CD collection.

• The number of CDs in Walter’s collection can be represented by x.

• The number of CDs in Juan’s collection is 3 times the number in Ko’s collection.

• The total number of CDs in both collections is 144 .

What is x, the number of CDs in Ko’s collection?

• 108

• 156

• 72

• 36

• 6

• 8

• 11

• 20

Which equation could be used to represent the relationship in the table?

• y = - 10x + 16

• y = 10x - 16