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Page 1: iv' B Solve and Write Multiplication Equationsmisterkmath.weebly.com/uploads/1/3/8/0/13802304/7.2b_solve_and_write... · ' NAME DATE PERIOD ~^ ... Solve and Write Multiplication Equations

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B Homework Practice Solve and Write Multiplication Equations

Solve each equation. Check your solution.

1. 7q,= 63 , 2. Uk = 0^ 3. 13w = 39

10. 35(7 = 5

7 n 5._3u = 42

9. 15s = 120 I T ^

13. 72.=

3T 3^

7

7. 14» = 70

4._55 = Ux_ I I M

S.3c = 3_

1 12. l | - j = 15

X

14. 0. 86. = L12 "5

16. 40 = 1.0m

17. TIME The Russian ice brea^cer Yd Ho) 0 ^ 2 5

15.£.3g = 7.13

move forward through 2. S-m^ior-thick-^ ice at a speed of 5.5 kilometers per hour. Write and solve a mult ip l icat ion equation to find the number of hoi^rs i t w i l l take to travel 82.5 kilometers thrdkigb the ice.

FUNDRAISING A school is ra i s ing money by sel l ing ca lendars for $20 each. Mrs. Hawk in s promised a party to whichever of her Eng l i sh classes sold the most ca lendars over the course of four week^^ the table to answer Exe rc i s e s 18-20.

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Mrs. Hawkins* IPSindraising Chal lenge

C las s Number of Ca lendars So ld

1st Period 60 2nd Period 123 3rd Period 89 4th Period 126

18. Wri te and solve an equation to show the average number of calendars her 3rd period class sold per week dur ing the four-week challenge.

(L . Z2 .2S ^-^ZT-u 19. How many calendars did the 1st and 2nd period classes sell on average per week? Wri te

and solve a mult ip l icat ion equation, j f- t 2»-/''-=• QO'f' {2-3 ~ ( § " 3

20. What was the average number of calendars sold i n a week by a l l of her classes?

4 l |i||ffB |BB!||EI For more examples, go to glencoe.com.

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Chapter 7 •1

109 Course 1

Page 2: iv' B Solve and Write Multiplication Equationsmisterkmath.weebly.com/uploads/1/3/8/0/13802304/7.2b_solve_and_write... · ' NAME DATE PERIOD ~^ ... Solve and Write Multiplication Equations

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Problem-Solving Practice Solve and Write Multiplication Equations

F o r Exe rc i s e s 1-3, use the table below. The table shows the amount of each k ind of mar ine life in Bunito 's saltwater aquar ium.

Bunito 's Sa ltwater Aquar ium Clown fish m Sea urchins a Seahorses 16

Starfish 9

1. The number of starfish is 3 times the number of clown fish. Write and solve an equation to find how many clown fish are i n the aquariura.

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2. The number of sea horses is 4 times the number of sea urchins. Write and solve an equation to find how many sea urchins are i n the aquarium.

3. The total cost of the starfish was $7.20. Write and solve an equation to find how much one starfish cost./^ * f-.

4. MONEY Paz has $18 i n her wallet. This is 3 times the money i n her pocket. Wri te and solve an equation to find how much money Paz has i n her

5. PAGES Marquis read 230 pages of a novel i n 5 hours. Write and solve an equation to find how many pages he ^ read i n one hour. p — # ^^H^y

6. EXPRESS A n express delivery company charges by the pound. A package that weighed 5 pounds cost $24.50 to overnight. Write and solve an equation to find how much the delivery company would charge to overnight a package that weighed 1 pound. ^ pffv^<^

Chapter 7 110 Course 1


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