#2 SC Ready Review pt 1 (7th calc)

Which quotient is negative?

• 2.4 ÷ (-0.3)

• -3.2 ÷ (-1.6)

• 1.8 ÷ (0.9)

• -2.5 ÷ (-5)

Which table shows a proportional relationship?

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Determine which sets of lengths could be the sides of a triangle and which cannot.

Groups:

(a) Triangle

,

(b) Not a Triangle

• 23in, 41in, 29in

• 8m, 6m, 10.6m

• 15yds, 20yds, 31yds

• 3mi, 0.5mi, 2.5mi

• 9ft, 12ft, 2ft

• 4.3cm, 2.8cm, 8.5cm

Which expression has a product of 1?

Mathematical Equivalence

ON

Which expression has a sum of 0?

• -8.2 - 8.2

• -4.25 + (-4.25)

The number of blue markers in an art cabinet is 26 less than half the number of green markers. If there are 138 green markers, how many blue markers are there?

Mathematical Equivalence

ON

A town council will survey residents to determine if a local recreation center should build a pool. Which sampling method will produce a random sample of the residents in the town?

• Survey every person at the mall on a selected day.

• Survey the family and friends of town council members.

• Survey 500 residents randomly selected from a list of all the residents in the town.

• Mail surveys to all residents and analyze the replies.

Mathematical Equivalence

ON