IXL - Compare rates: word problems (Algebra 1 practice)

Adam is buying some granola bars from the store. He finds a box of 6 Brain Grains granola bars for

4.74

and a box of 10 Nutty Crunch bars for

7.80

Which brand is the better value?

Brain Grains

Nutty Crunch

ref_doc_title.

Learn with an example

question

Richard went kayaking last weekend. On Saturday, he kayaked for 2 hours and went 7 kilometers. On Sunday, he kayaked on a different river for 3 hours and went 12 kilometers. On which day did Richard kayak at a faster average speed?

Saturday

Sunday

solution

To find which day Richard kayaked at a faster speed, compare his unit rates. See on which day he had a greater unit rate.

On Saturday, Richard kayaked 7 kilometers in 2 hours. Find the unit rate.

kilometers

hours

3.5

On Sunday, Richard kayaked 12 kilometers in 3 hours. Find the unit rate.

kilometers

hours

4 kilometers per hour is faster than 3.5 kilometers per hour. So, Richard kayaked at a faster speed on

Sunday.

Looking for more? Try this:

$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

Questions
answeredQuestions

Time
elapsedTime

hr	min	sec
00	00	02

SmartScore
out of 100
IXL's SmartScore is a dynamic measure of progress towards mastery, rather than a percentage grade. It tracks your skill level as you tackle progressively more difficult questions. Consistently answer questions correctly to reach excellence (90), or conquer the Challenge Zone to achieve mastery (100)! Learn more

Teacher tools

Work it out

Not feeling ready yet? These can help:

Unit rates

L.8Compare ratios: word problems

Excellent! You got that right!

Jumping to level 1 of 1

Excellent!