Register
Deandra is doing her math homework. Out of 24 problems total, she completed the first 12 problems in 1 hour and the last 12 problems in 3 hours. What is the unit rate for all 24 problems?
79.8k views
3 votes
Deandra is doing her math homework. Out of 24 problems total, she completed the first 12 problems in 1 hour and the last 12 problems in 3 hours. What is the unit rate for all 24 problems?

User Harrism
by
8.5k points

2 Answers

4 votes

If you divide 12 by 3 the correct answer should be 4 problems per hour.

User Koos Gadellaa
by
7.8k points
4 votes
To find unit rate for all 24 problems.
12 problems completed in 1 hour = 12 in 60 minutes
Last 12 problems in 3 hours = 12 in 180 minutes
Total 24 in (180+60= 240) minutes
Time taken to solve one problem = 240/24 = 10 minutes.
This means Deandra on an average took 10 minutes to solve each problem.
User Farid Movsumov
by
8.1k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!