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Literal Equations & Proportions Review

Total questions: 20

Worksheet time: 49mins

Name
Class
Date
1.
A literal equation is an equation that has...
a)
one variable (letter or symbol)
b)
two variables
c)
one or more variables
d)
more than one variable
2.

Solve  x+5 = yx+5\ =\ y  for x

a)

 x=y+5x=y+5  

b)

 x=y5x=y-5  

c)

 y=x5y=x-5  

d)

 y=x+5y=x+5  

3.

Solve  3x+4y=8  for y

a)

 y= 83x 4y=\frac{\ 8-3x\ }{4}  

b)

 y= 8 + 3x4y=\frac{\ 8\ +\ 3x}{4}  

c)

 y=843y=\frac{8-4}{3}  

d)

 y=8 3x 4y=\frac{8}{\ 3x\ }-4  

4.

Solve  a  b + c +d= ea\ -\ b\ +\ c\ +d=\ e  for c

a)

 c = a + b + d + ec\ =\ a\ +\ b\ +\ d\ +\ e  

b)

 c = e a + b  dc\ =\ e\ -a\ +\ b\ -\ d  

c)

 c=e dbac=e\ -d-b-a  

d)

 c= e abdc=\frac{\ e\ }{abd}  

5.

Solve for W: A = LW

a)

A - L = W

b)

A + L = W

c)

 AW\frac{A}{W}  = L

d)

 AL\frac{A}{L}  = W

6.

 y= zx  solve for xy=\ \frac{z}{x}\ \ solve\ for\ x  

a)

 x = yzx\ =\ \frac{y}{z}  

b)

 x = zyx\ =\ \frac{z}{y}  

c)

 x = yzx\ =\ yz  

d)

 x = y  zx\ =\ y\ -\ z  

7.

Solve for m
 E=mc2E=mc^2  

a)

 m=Ec2m=E-c^2  

b)

 m=Ec2m=Ec^2  

c)

 m=2Ecm=\frac{2E}{c}  

d)

 m=Ec2m=\frac{E}{c^2}  

8.

Solve for h,      S =  2πrh2\pi rh  

a)

h=  S2πr\frac{S}{2\pi r}  

b)

h =  S2πrS2\pi r  

c)

h =  S2πrS-2\pi r  

d)

h =  2πrS\frac{2\pi r}{S}  

9.

 V=13BhV=\frac{1}{3}Bh  
Solve for h

a)

 h=13VBh=\frac{1}{3}V-B  

b)

 h=13VBh=\frac{\frac{1}{3}V}{B}  

c)

 h=3VBh=3V-B  

d)

 h=3VBh=\frac{3V}{B}  

10.

 F=95C+32F=\frac{9}{5}C+32  
Solve for C

a)

 C=95(F32)C=\frac{9}{5}\left(F-32\right)  

b)

 C=95F32C=\frac{9}{5}F-32  

c)

 C=59F 32C=\frac{5}{9}F\ -32  

d)

 C=59(F32)C=\frac{5}{9}\left(F-32\right)  

11.

  V=13πr2hV=\frac{1}{3}\pi r^2h  
Solve for  rr  

a)

 r=V3πhr^{ }=\frac{V}{3\pi h}  

b)

 r=3πhVr^{ }=\sqrt{\frac{3\pi h}{V}}  

c)

 r=3Vπhr^{ }=\sqrt{\frac{3V}{\pi h}}  

d)

  r=3Vπhr=\frac{3V}{\pi h}  

12.
What is a proportion?
a)
When two ratios can be simplified
b)
When two ratios are equivalent and show the same value
c)
When two ratios have the exact same numbers
d)
When two ratios can be multiplied by 2
13.

n12= 38      Find the Equation!    \frac{n}{12}=\ \frac{3}{8}\ \ \ \ \ \ Find\ the\ Equation!\ \ \ \  

a)

3n=12(8)

b)

8n=12(3)

c)

12(8)=3n

d)

3(8)=12n

14.

n12= 38          \frac{n}{12}=\ \frac{3}{8}\ \ \ \ \ \ \ \ \ \  

a)

62\frac{6}{2}  

b)

4.54.5  

c)

3.7

d)

83\frac{8}{3}  

15.

112= 8x\frac{1}{12}=\ \frac{8}{x}  

a)

x= 72

b)

x= 20

c)

x= 96

d)

x= 42

16.
Solve the proportion:
a)
4
b)
8
c)
14
d)
10
17.

x+412= 34\frac{x+4}{12}=\ \frac{3}{4}  

a)

x= 6

b)

x= 8

c)

x = 2

d)

x= 5

18.

Solve the proportion:

48x=2x+5\frac{4}{8x}=\frac{-2}{x+5}

a)

-1

b)

5

c)

4

d)

-0.25

19.

Set up a proportion for the following situation:

If a car travels 280 miles in 7 hours, how far will it travel in 12 hours?

There are 2 correct answers.

a)

2807=x12\frac{280}{7}=\frac{x}{12}  

b)

2807=12x\frac{280}{7}=\frac{12}{x}  

c)

280x=712\frac{280}{x}=\frac{7}{12}  

d)

280x=127\frac{280}{x}=\frac{12}{7}  

20.

What is the value of "x" in this proportion?

a)

23

b)

24

c)

25

d)

26