Challenge Solve each proportion.
Ay- 3 4
55.y2 + 1 y 56.w22w + 2^ + 3 w 2 57. 5x
xJ + 5 x2-7- Parade Floats A group of high school stu d en ts is m aking a p arad e float by stuffing
pieces of tissue p a p e r into a wire frame. They use 150 tissues to fill an area 3 ft long
an d 2 ft wide. The total area they w an t to fill is 8 ft long an d 7 ft wide. W hat is the
total n u m b e r of tissues they will need? - Insects It takes an insect 15 s to crawl 1 ft. How m any h o u rs w ould it take th e insect
to crawl 1 m i if the insect crawls at th e sam e rate?
^SAT/ACT
St a n d a r d i z e d Test Pr ep
- A high school soccer team is m aking trail m ix to sell at a fundraiser. The recipe calls
for 3 lb of raisins a n d 2 lb of p ean u ts. If th e team pu rch ases 54 lb of peanuts, how
m any p o u n d s of raisins will they need?
(3D 27 CBD 36 (CO 81 ( D } 162 - One day d uring flu season, | of th e stu d en ts in a class w ere out sick, an d only
24 stu d en ts were left. How m any stu d en ts are in th e class?
CD 16 (G O 30 (H O 36 GO 72 - An art gallery ow ner is fram ing a rectangular painting, as shown.
The ow ner w ants the w idth of th e fram ed p ain tin g to be 38 j in.
How w ide should each of the vertical sections of th e fram e be? x in.-
GD 4 1 in.(10 41 in.(CO 41 in.
CE> 82 in.■30 in.xin.Mixed Review
Copy and complete each statement. ^ See Lesson 2-6.- 6 q t = 1 gal 64. 84 in. = S ft 65. 2 ^ yd = 1 in. 66. 3 m in 10 s = K s
Solve each equation. If the equation is an identity, write identity. If it has no
solution, write no sol ut i on.- 3x — {x — 4) = 2x 68. 4 + 6 c = 6 — 4c
Get Read y! To p r e p a r e f o r Le sso n 2 - 8 , d o Ex e r c i se s 7 0 - 7 3.
Solve each proportion.- 12 30 71 — = —' '■ 12 45 72.w_= 15 12 27
See Lesson 2-4.- 5a - 2 = 0.5(10fl - 4)
See Lesson 2-7.
7 , n_ n + 1
'*■ 9 — 24PowerAlgebra.com Lesson 2-7 So l v i n g Pr o p o r t i o n s : ' ..^129