Fractions, Decimals, Converting Fractions, Decimals, And Percents, Ratios, Exponents Worksheet With Answers Page 14
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30Find the Unknown:
1.
5 = N
2.
17 = 21
7
105
N
63
3.
Nicole is a beautician. She takes care of 9 customers in 5 hours. What is the ratio
of customers to hours?
4.
Jan earns $2.00 in commissions for every $5.00 in business. If she brings in
$325.00, how much money will she get in commissions?
5.
A town wants to keep its ration of 7 parks to 5,000 people. If the town grows to
15,000 people, how many parks will it need?
6.
If a plane flew 932 miles in 2 hours, how far will it fly in 7 hours?
Solving Equations
-
Get the unknown on one side of the = sign and its value on the other side of the
sign.
-
Use the opposite operation (-,+,x,÷) of the one shown in the equation.
-
Any operation (-,+,x,÷) performed on one side of the equation must be performed
on the other side of the equation.
-
The opposite of – is +, and the opposite of x is ÷.
Example: x + 15 = 31
- 15 -15
x
= 16
Example: 5x = 15
5x = 15
(5x ÷ 5 = x)
5
5
(15 ÷ 5 = x)
x = 3
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