7th Grade Math

EP14 Extra Practice

Extra Practice

Multi-Part Lesson 5-1 (continued)

PARTS D E PAGES 276–281

Solve each proportion.

1. 15 x = 45 2. 11 a = ^248 3. ^19 p = 3216 4. _^5 t = _0.50.3


2. 195 = 57 c 6. _3.6 3 = _2.5b 7. 4.5^18 = ^8
   f
   8. _^367 = _a
   21


3. ^98 = ^36
   a
   10. 126 b = ^3
   14
   11. n 6 = ^1
   4
   12. _^79 = _c
   54


4. _ 32 = a
   12
   14. ^78 = c
   16
   15. ^37 = ^21
   d
   16. 52 = _^18
   x


5. _^35 = n
   21
   18. 125 = 5 b 19. 364 = ^2
   y
   20. ^168 =

y

_

12

Multi-Part Lesson 5-2: Scale Drawings and Models

PART A PAGES 282–283

Use the draw a diagram strategy to solve the problem.

1. PICTURE FRAMES Mr. Francisco has 4 picture frames that he wants to
   hang on the wall. In how many different ways can he hang the
   picture frames in a row on the wall?


2. PONDS Carter is filling the pond in his backyard. After 2 minutes
   and 20 seconds, the pond is only _^17 full. If the pond can hold
   280 gallons, how much longer will it take to fill the pond?


3. MARCHING BAND The marching band is in formation on the field. In the
   first row, there are 10 band members. Each additional row has
   6 more members in it than the previous row. If there are a total of
   6 rows, how many band members are there?

PARTS B C PAGES 284–291

On a map, the scale is 1 inch = 50 miles. For each map distance, find the

actual distance.

1. 5 inches 2. 12 inches


2. 2 ^38 inches 4. ^45 inch


3. 2 _ 65 inches 6. 3.25 inches


4. 4.75 inches 8. 5.25 inches

On a scale drawing, the scale is _^12 inch = 2 feet. Find the dimensions of

each room in the scale drawing.

9. 14 feet by 18 feet 10. 32 feet by 6 feet


10. 3 feet by 5 feet 12. 20 feet by 30 feet


11. A photograph was enlarged from 5.5 inches by 7 inches to 11 inches
    by 14 inches. Find the scale factor of the enlargement.

EP2_EP36_ExtPract_M1_895130.indd EP14 1/6/10 11:46 AM