Middle School Math & Grammar/ProOneSoftware-MiddleSchoolMath&Grammar-Win31.iso/math/chapter5.3b

Text File | 1993-09-25 | 4KB | 316 lines

 314
àï5.3è Base, Rate, and Amount.

äïPlease identify the Base, Rate, or Amount in the following
êêsentences.

â
ê Identify the Base, Rate, and Amount in the following sentence.

êêêè 16èisè20 %èofè80.
êêêè êïêè 
êêêèAmountëRateê Base
éS


è All percent problems have three basic parts called
the Base, the Rate, and the Amount.ïTo identify ç parts, you should
first look for the "Rate".ïThis is the easiest part to find, because it
has the percent symbol (%).ïIn the sentence, "16 is 20% of 80", it is
clear that the Rate is 20%.

è The second easiest part to find is the Base.ïThe Percent is always
"of" the Base.ïIn our example, "16 is 20% of 80", the Base is 80,
because we have 20% of 80. (Percent of Base)

è The third number is the Amount.ïIn this example, 16 is the Amount.

 1
êè Identify the Rate in the sentence, "10 is 25% of 40".


ë A)ï25%êè B)ï10êëC)ï40êëD)ïå


ü


êêêêThe Rate is 25%.


Ç A
 2
êè Identify the Rate in the sentence, "70 is 35% of 200".


ë A)ï200êè B)ï35%êè C)ï70êëD)ïå


ü


êêêêThe Rate is 35%.


Ç B
 3
êëIdentify the Rate in the sentence, "20 is 40% of 50".


ë A)ï50êëB)ï20êëC)ï40%êè D)ïå


ü


êêêêThe Rate is 40%.


Ç C
 4
êè Identify the Rate in the sentence, "120 is 80% of 150".


ë A)ï80%êè B)ï120êè C)ï150êè D)ïå


ü


êêêêThe Rate is 80%.


Ç A
 5
êè Identify the Rate in the sentence, "73.8 is 90% of 82".


ë A)ï73.8êèB)ï90%êè C)ï82êëD)ïå


ü


êêêêThe Rate is 90%.


Ç B
 6
êè Identify the Base in the sentence, "20% of 80 is 16".


ë A)ï20%êè B)ï16êëC)ï80êëD)ïå


ü


êêêêThe Base is 80.


Ç C
 7
êè Identify the Base in the sentence, "70 is 35% of 200".


ë A)ï200êè B)ï35%êè C)ï70êëD)ïå


ü


êêêêThe Base is 200.


Ç A
 8
êëIdentify the Base in the sentence, "40% of 50 is 20".


ë A)ï40%êè B)ï50êëC)ï20êëD)ïå


ü


êêêêThe Base is 50.


Ç B
 9
êè Identify the Base in the sentence, "80% of 150 is 120".


ë A)ï120êè B)ï80%êè C)ï150êè D)ïå


ü


êêêêThe Base is 150.


Ç C
 10
êè Identify the Base in the sentence, "73.8 is 90% of 82".


ë A)ï82êëB)ï90%êè C)ï73.8êèD)ïå


ü


êêêêThe Base is 82.


Ç A
 11
êè Identify the Amount in the sentence, "10 is 25% of 40".


ë A)ï40êëB)ï10êëC)ï25%êè D)ïå


ü


êêêë The Amount is 10.


Ç B
 12
êè Identify the Amount in the sentence, "73.8 is 90% of 82".


ë A)ï73.8êèB)ï90%êè C)ï82êëD)ïå


ü


êêêëThe Amount is 73.8.


Ç A
 13
êIdentify the Rate in the sentence, "What number is 38% of 156?"
ê(do not solve)

ëA)ïwhat numberë B)ï38%ê C)ï156êè D)ïå


ü


êêêêThe Rate is 38%.


Ç B
 14
êIdentify the Base in the sentence, "83 is 24% of what number?"
ê(do not solve)

ëA)ï83êè B)ï24%êïC)ïwhat numberë D)ïå


ü


êêêèThe Base is "what number".


Ç C
 15
êIdentify the Amount in the sentence, "96 is what percent of 280?"
ê(do not solve)

ëA)ïwhat percentêB)ï96êïC)ï280êèD)ïå


ü


êêêë The Amount is 96.


Ç B
 16
êè Bill's 4% commission on $10,000 is $400. Name the Base.
êè (do not solve)

ëA)ï$10,000ê B)ï4%êèC)ï$400êèD)ïå


ü


êêêëThe Base is $10,000.


Ç A
 17
êè A 6% interest rate on an investment of $6,000 is $360.ïName
êè the Amount. (do not solve)

ë A)ï6%êëB)ï$360êèC)ï$6,000ê D)ïå


ü


êêêëThe Amount is $360.


Ç B
 18
êèYou have 10% of your $3,000 salary deducted for savings.ïWhat
êèis the Base? (do not solve)

ëA)ïsavingsêB)ï10%êè C)ï$3,000ê D)ïå


ü


êêêëThe Base is $3,000.


Ç C
 19
êèA 2000 student campus has a 3% increase in enrollment of 60
êèstudents.ïWhat is the Amount? (do not solve)

ë A)ï60êëB)ï2000êèC)ï3%êëD)ïå


ü


êêêë The Amount is 60.


Ç A
 20
êèA shipment of 500 parts from a production process with 5%
êèdefectives has 25 bad parts.ïWhat is the Base? (do not solve)

ë A)ï25êëB)ï500êè C)ï5%êëD)ïå


ü


êêêë The Base is 500.


Ç B