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FTCE 5-9 Test Prep. Center for Teaching and Learning. Competency 1. Which item cost the least? $1.79 for 10 ounces $189 for 12 ounces $5.49 for 32 ounces. Competency 1. Which item cost the least? $1.79 for 10 ounces $0.179 oz $1.89 for 12 ounces $0.1575 oz
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FTCE 5-9 Test Prep Center for Teaching and Learning
Competency 1 Which item cost the least? $1.79 for 10 ounces $189 for 12 ounces $5.49 for 32 ounces
Competency 1 Which item cost the least? $1.79 for 10 ounces $0.179 oz $1.89 for 12 ounces $0.1575 oz $5.49 for 32 ounces $0.172 oz Best buy is 12 ounces for $1.89
Competency 1 How much does an item cost that sells for $120 with a sales tax of 7%? How much is the tax?
Competency 1 How much does an item cost that sells for $120 with a sales tax of 7%? Cost of item with tax is $120 x 1.07 or $128.40 How much is the tax? Tax can be found by subtracting total cost from price of item. $128.40 - $120 = $8.40
Competency 1 Find the time from 11:34:22 AM until 2:28:40 pm
Competency 1 03:28:40 pm • 11:34:22 am Convert pm time to military time by adding 12 hours. 15:28:40 pm • 11:34:22 am you see that you cannot subtract 34 minutes from 28 minutes Take one hour from 15 hours, change to 60 minutes and add to 28 minutes 14:88:40 pm • - 11:34:22 am 03:54:18 which is 3 hours, 54 minutes and 18 seconds
Competency 1 There are 100 coins in a jar. Ten are dimes, The rest are pennies and nickels. There are twice as many pennies as nickels. How many pennies and nickels are in the jar?
Competency 1 There are 100 coins in a jar. Ten are dimes, The rest are pennies and nickels. There are twice as many pennies as nickels. How many pennies and nickels are in the jar? What do you know? • 100 coins • Nickels, dimes, pennies • 10 are dimes • 90 are nickels and pennies • Twice pennies than nickels
Competency 1 • 100 coins • Nickels, dimes, pennies • 10 are dimes • 90 are nickels and pennies • Twice pennies than nickels • We can write this equation P + N = 90 • We can also write P = 2N (twice pennies than nickels) • Substitute: 2N + N = 90 3N = 90 N = 30 • This means there are 30 nickels and 60 pennies
Competency 1 John subtracted 7 from his age and divided the difference by 3. The result was 4. What is John’s age?
Competency 1 John subtracted 7 from his age and divided the difference by 3. The result was 4. What is John’s age? What do we know?
Competency 1 Let John be X. X – 7 (he subtracted 7 from his age) (X – 7)/3 he divided by 3 (x – 7)/ 3 = 4 result was 4 Now solve the equation x – 7 = 12 x = 19 John is 19