# Eureka Math Grade 4 Module 7 Lesson 11 Answer Key

## Engage NY Eureka Math 4th Grade Module 7 Lesson 11 Answer Key

### Eureka Math Grade 4 Module 7 Lesson 11 Problem Set Answer Key

Use RDW to solve the following problems.
Question 1.
Lauren ran a marathon and finished 1 hour 15 minutes after Amy, who had a time of 2 hours 20 minutes. Cassie finished 35 minutes after Lauren. How long did it take Cassie to run the marathon?
The time taken by Amy to complete the run = 2 hours 20 minutes
The time taken by Lauren is 1 hour 15 minutes more
Which means, 2 hours 20 minutes + 1 hour 15 minutes = 3 hours 35 minutes
The time taken by Cassie to finish the run is 35 minutes more than Lauren
Which means, 3 hours 35 minutes + 35 minutes
= 3 hours 70 minutes
It is also written as 4 hours 10 minutes
Therefore, Cassie took 4 hours 10 minutes to run the marathon.

Question 2.
Chef Joe has 8 lb 4 oz of ground beef in his freezer. This is $$\frac{1}{3}$$ of the amount needed to make the number of burgers he planned for a party. If he uses 4 oz of beef for each burger, how many burgers is he planning to make?
The amount of beef Chef Joe has in his freezer = 8 lb 4 oz
Given that, 1/3 of the amount is needed to make the number of burgers
Now, 3 x ( 8 lb 4 oz )
= 24 lb 12 oz
24 lb is also written as 384 ounces
So, 384 ounces + 12 ounces = 396 ounces
If he uses 4 oz of beef for each burger
The number of burgers he is planning to make =
396 /4Â  = 99
Therefore, chef Joe is planning to make 99 burgers.

Question 3.
Sarah read for 1 hour 17 minutes each day for 6 days. If she took 3 minutes to read each page, how many pages did she read in 6 days?
Given,
The time each day Sarah read for 6 days = 1 hour 17 minutes
1 hour 17 minutes = 77 minutes
77 minutesÂ  x 6 days = 462 minutes
If she took 3 minutes to read each page , the number of pages she can read in 6 days =
462 / 3 = 154
In 6 days she can read 154 pages.

Question 4.
Grades 3, 4, and 5 have their annual field day together. Each grade level is given 16 gallons of water. If there are a total of 350 students, will there be enough water for each student to have 2 cups?
We know that, 1 gallon = 16 cups
16 x 3 = 48 gallons
Now, 48 gallons in cups =
48 x 16 = 768 cups
We have 768 cups of water
Total number of students = 350
Now, 350 x 2 = 700 cups
Therefore, therefore is enough water for each student to have 2 cups.

### Eureka Math Grade 4 Module 7 Lesson 11 Exit Ticket Answer Key

Use RDW to solve the following problem.
Judy spent 1 hour 15 minutes less than Sandy exercising last week. Sandy spent 50 minutes less than Mary, who spent 3 hours at the gym. How long did Judy spend exercising?
Given,
The time spend by Mary at the gym = 3 hours
The time Sandy spend at the gym is 50 minutes less than Mary
Which means,
3 hours – 50 minutes
= 2 hours 10 minutes
The time Judy spent at the gym is 1 hour 15 minutes less than Sandy
Which means, 2 hours 10 minutes – 1 hour 15 minutes
= 55 minutes
Therefore, Judy spent 55 minutes for exercising.

### Eureka Math Grade 4 Module 7 Lesson 11 Homework Answer Key

Use RDW to solve the following problems.
Question 1.
Ashley ran a marathon and finished 1 hour 40 minutes after P.J., who had a time of 2 hours 15 minutes. Kerry finished 12 minutes before Ashley. How long did it take Kerry to run the marathon?
The time taken for p.j. to complete his run = 2 hours 15 minutes
The time taken for Ashley to finish his run is 1 hour 40 minutes after p.j.
Which means, 2 hours 15 minutes + 1 hour 40 minutes = 3 hours 55 minutes
The time taken for Kerry to finish his run is 12 minutes before Ashley
Which means,
3 hours 55 minutes – 12 minutes = 3 hours 43 minutes
Therefore, Kerry took 3 hours 43 minutes to run the marathon.

Question 2.
Mr. Footeâ€™s deck is 12 ft 6 in wide. Its length is twice the width plus 3 more inches. How long is the deck?
Given,
The wide of deck = 12 feet 6 in
Also given, The length is twice the width plus 3 more inches
So, 12 feet 6 inches + 12 feet 6 inches + 3 inches
= 24 feet 15 inches
We, know that, 1 feet = 12 inches
Therefore, the deck is 25 feet 3 inches long.

Question 3.
Mrs. Lorentz bought 12 pounds 8 ounces of sugar. This is $$\frac{1}{4}$$ of the sugar she will use to make sugar cookies in her bakery this week. If she uses 10 ounces of sugar for each batch of sugar cookies, how many batches of sugar cookies will she make in a week?
Given,
The amount of sugar Mrs. Lorentz bought = 12 pounds 8 ounces
We know that, 1 pound = 16 ounces
12 pounds 8 ounces = 200 ounces
If she uses 10 ounces of sugar
The number of batches of sugar cookies she will make in a week
= 200 / 10 = 20
Therefore, she will make 20 batches of cookies.

Question 4.
Beth Ann practiced piano for 1 hour 5 minutes each day for 1 week. She had 5 songs to practice and spent the same amount of time practicing each song. How long did she practice each song during the week?
Given that,
The time Beth Ann spent to practice piano for 1 week = 1 hour 5 minutes
Total number of songs = 5
1 hour 5 minutes = 65 minutes
65 minutes x 7 days = 455 minutes
Now, 455 / 5 = 91
Therefore, Beth Ann practiced each song for 91 minutes.

Question 5.
The concession stand has 18 gallons of punch. If there are a total of 240 students who want to purchase 1 cup of punch each, will there be enough punch for everyone?