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Unit 3 Advance 7th Math

Total questions: 10

Worksheet time: 25mins

Name
Class
Date
1.

What is the correct proportion for △PRS?

a)

PSTQ = SRPT\frac{PS}{TQ}\ =\ \frac{SR}{PT}

b)

SRQT = PQTS\frac{SR}{QT\ }=\ \frac{PQ}{TS}

c)

QRTS = PQTQ\frac{QR}{TS}\ =\ \frac{PQ}{TQ}

d)

PSPT = SRTQ\frac{PS}{PT\ }\ =\ \frac{SR}{TQ}

2.

There was a blizzard. Snow was falling at a rate of 4 ½ inches per hour. If the snow kept accumulating at the same rate, how long would it take for 5 feet of snow to accumulate?

a)

12\frac{1}{2} hour

b)

5 hours

c)

13 hours and 20 minutes

d)

13 hours and 13 minutes

3.

A store sells bars of soap at 4 for $3.56. How many bars of soap can you purchase for $13.35.

a)

16 bars

b)

5 bars

c)

15 bars

d)

20 bars

4.

What is the unit rate?

a)

195

b)

6.5

c)

.75

d)

65

5.

A rectangle has a length of 4 feet and a perimeter of 14 feet. What is the perimeter of a similar rectangle with a width of 9 feet?

a)

36 ft

b)

108 ft

c)

42 ft

d)

126 ft

6.

What is the scale factor, k, from U to V?

a)

3

b)

14\frac{1}{4}

c)

25\frac{2}{5}

d)

18\frac{1}{8}

7.

The money used in Jordan is called the Dinar. The exchange rate is $3 to 2 Dinars. Which table shows the correct relationship?

a)
b)
c)
d)
8.

Given the vertices and the scale factor. Name the pre-image vertices for the dilation. A (-5,5), B (-5,10), C (10,0), k= 35\frac{3}{5}  

a)

A'(3,3), B' (3,6), C' (6,0)

b)

A'(6,0), B' (-3,3), C' (-3,6)

c)

A' (-3,3), B' (-3,6), C' (6,0)

d)

A' (-3,-3), B' (3,-6), C' (6, 6)

9.

If  Δ\Delta  TSR is similar to  Δ\Delta  TNM, what is the value of x?

a)

140

b)

35

c)

5

d)

3 25\frac{2}{5}  

10.

To estimate the height of her school’s gym, Nicole sights the top of the gym wall in a mirror that she has placed on the ground. The mirror is 3.6 meters from the base of the gym wall. Nicole is standing 0.5 meter from the mirror, and her height is about 1.8 meters. What is the height of the gym wall?

a)

12.96 m

b)

8.3 m

c)

11.16 m

d)

14.76 m