by Kellie B
(Ann Arbor, MI)
Johnny works at a local bakery. In the morning Customer #1 buys 1/2 a pan of brownies. Later, Customer #2 buys 1/4 of the remaining brownies. The brownies cost $10 for a whole tray.
How much did Customer #1 pay for his brownies? ___________
What fraction of a pan did Customer #2 buy? _______________
How much did Customer #2 pay for his brownies? ___________
Solution
Customer #1
Customer #1 bought half or 1/2 of the whole tray.
The tray cost 10. Half of 10 is 5
Another way to do the computation is to do
1/2 × 10 = (1 × 10) / 2 = 10 / 2 = 5
Customer #1 paid 5 dollars for his brownies
Customer #2
Customer 2 bought 1/4 of the remaining brownies.
The remaining brownies is 1/2
Thus, customer #2 bought 1/4 of 1/2
1/4 of 1/2 = 1/4 × 1/2
= (1 × 1) / (4 × 2)
= 1 / 8
Customer #2 bought 1/8 of the brownies
The fraction of a pan Customer #2 bought is 1/8
Customer #2 only bought 1/8 of the brownies.
So just find out what 1/8 of 10 is
1/8 of 10 = 1/8 × 10
1/8 × 10 = ( 1 × 10 ) / 8 = 10 / 8 = 1.25
Customer #2 paid 1.25 dollar for his brownies?
Jan 18, 19 10:53 AM
This overtime calculator will help you figure out how much money earned for working overtime
New math lessons
Your email is safe with us. We will only use it to inform you about new math lessons.
Jan 18, 19 10:53 AM
This overtime calculator will help you figure out how much money earned for working overtime
Our Top Pages
Formula for percentage
Compatible numbers
Basic math test
Basic math formulas
Types of angles
Math problem solver
Algebra word problems
Surface area of a cube
Finding the average
Scale drawings
Everything you need to prepare for an important exam!
K-12 tests, GED math test, basic math tests, geometry tests, algebra tests.
Real Life Math Skills
Learn about investing money, budgeting your money, paying taxes, mortgage loans, and even the math involved in playing baseball.