Week 18~Monday (Scale Factor)

What would be the actual length, if the length of the model is 25 ft. and the scale factor is lesser than one?

• 20 ft.

• 25 ft.

• 30 ft.

Tags

CCSS.7.G.A.1

Which figure is the scaled copy of figure G?

• 
• 
• 

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CCSS.8.G.A.3

 The polygons on #3 on you homework sheet are similar. Find the missing side length.

• 1.5

• 24

• 36

• 16

Tags

CCSS.HSG.SRT.A.2

 The polygons on #4 are similar. Find the missing side length.

• 20

• 1.25

Tags

CCSS.HSG.SRT.A.2

• 15

• 5

• -28

• 12

Tags

CCSS.6.EE.B.5

Write an inequality for x that would give this isosceles triangle a perimeter of at least 137 ft. Which inequality would help give you the perimeter?

• 2(2x +7) + 4x + 3 ≥ 137

• 2x +7 + 4x + 3 ≥ 137

• 2(2x +7) + 4x + 3 ≤ 137

• 2x +7 + 4x + 3 ≤ 137

Jon walked 8 miles in 3 hours. Jim walked 14 miles in 5 hours. Are these rates in proportion? If not, who walked faster?

• Yes; since the unit rates are the same, neither is faster than the other.

• Yes; since the unit rates are the same, they are equally as fast as the other.

• No; Jon was faster because his unit rate was lower.

• No; Jim was faster because his unit rate was higher.

Tags

CCSS.6.RP.A.3A