Math 2 - HW Check 7.1

Which statement best describes what a ratio is.

• A number
• A comparison of two quantities using division.
• A comparison
• A comparison of many things.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which of the following options is a real life example of a ratio?

• 12 noodles
• 4 meatballs : 1 cup of sauce
• 1 jar of sauce
• 15 desserts

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

what is the ratio of seals to turtles?

• 5 : 3
• 3 to 5
• 3 of 5
• 3 : 8

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

what is the ratio of seals to animals

• 5 : 3
• 3 to 5
• 3 of 5
• 3 : 8

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Some proportion problems are easy and can be solved using basic mental math. For example: A cookie recipe calls for 1 cup of brown sugar and 2.5 cups of flour. If I use 5 cups of flour, how much brown sugar should I use?

• 2 cups

• 5 cups

• 1 cup

• 3 cups

The ratio of cars to trucks in the parking lot is 3:5.  If there are 360 vehicles in the parking lot, how may are trucks?

• x = 270 cars
• x = 225 cars
• x = 225 trucks
• x = 270 trucks

The angles of a triangle are in an extended ratio of 5:7:3. What is the measure of the largest angle?

• 84^o
• 12^o
• 60^o
• 36^o

Tags

CCSS.8.G.A.5

The extended ratio of the sides of a triangle are 2:4:7. Find the length of the shortest side if the perimeter is 117 inches.

• 18 inches
• 9 inches
• 36 inches
• 63 inches

Tags

CCSS.7.RP.A.3

CCSS.7.RP.A.2

Mathematical Equivalence

ON

Answer explanation

Cross multiply

k(8) and 3(4)

8k=12

Divide by the coefficient 8

12/8=1.5

k=1.5

Tags

CCSS.5.NF.B.5B

Mathematical Equivalence

ON

Answer explanation

First: put the group in parentheses (w+8)

Cross multiply

3(w+8)=6(7)

distribute

3w+24=42

subtract 24

3w=18

divide by 3

w=6

Tags

CCSS.7.EE.B.4A