Alberto`s Fish Tank

Middle-of-Year
Performance Task
Name
Alberto’s Fish Tank
Alberto gets a fish-tank kit for his birthday. The kit comes with
a 15-gallon tank, bags of colored gravel, and water-cleaning
drops. Use this information to answer questions 1–4. Show your
work. Write all answers in simplest form.
1. The
chart below shows how much of each color of gravel
Alberto puts in the bottom of his fish tank.
Color
Black
Gray
White
Yellow
Gravel
(pounds)
1
 ​__
 ​
7
_
​ ​ 
1
_
​ ​ 
1
​_
​ 
a. How
4
8
2
8
many pounds of gravel does Alberto put in the tank?
b. Each color of gravel comes in an 8​ _12 ​-pound bag. How many
pounds of gravel will Alberto have left after he's put gravel in
his tank?
GO ON
PARCC Test Prep
© Houghton Mifflin Harcourt Publishing Company
89
Middle-of-Year Test
Middle-of-Year
Performance Task
Name
2. Once
the gravel is in place, Alberto wants to fill his tank with
water.
. The gravel takes up the same space in the tank as about
a
​ _15 ​gallon of water. Alberto wants to leave an additional
​ _12 ​gallon of space in the tank for fish and plants. How much
water does Alberto need to add to fill the 15-gallon tank?
b. Water evaporates at the rate of ​ _18 ​inch per hour. How much
water will evaporate in 24 hours?
1
8
24
8
24 × __
​ ​ = ___
​  ​  = 3
2
c. If each inch of water that evaporates is equal to ​ __
25  ​gallon
of water, how many gallons of water will evaporate in
24 hours?
2
25
6
25
3 × ​ ___ ​ = ___
​   ​ 
GO ON
PARCC Test Prep
© Houghton Mifflin Harcourt Publishing Company
90
Middle-of-Year Test
Middle-of-Year
Performance Task
Name
3. Alberto
puts 3 kinds of fish in his fish tank: zebra danios, fancy
guppies, and catfish. Half of Alberto’s fish are zebra danios. He has 2 times as many catfish as he has fancy guppies.
. Alberto’s friend Jackson says that ​ _13 ​of Alberto’s fish are
a
catfish. Is Jackson correct? Draw a diagram and explain
your answer.
b. One of Alberto’s zebra danios is ​ _43 ​the length of one of his
fancy guppies. Which fish is longer? Explain how you know.
GO ON
PARCC Test Prep
© Houghton Mifflin Harcourt Publishing Company
91
Middle-of-Year Test
Middle-of-Year
Performance Task
Name
4. Alberto
feeds his fish the same amount of food each day.
1
He measures and finds the fish eat ​ __
50  ​ounce of fish food
per day.
a. How many ounces of food will Alberto need for 110 days?
Explain how you found your answer.
b. Alberto is thinking of buying a jar of fish food flakes that will
last 110 days. If he does not change the number of fish, how
many of these jars of fish food flakes would Alberto need to
buy in 1 year?
STOP
PARCC Test Prep
© Houghton Mifflin Harcourt Publishing Company
92
Middle-of-Year Test