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The scale of a map for a high school is 2 inches=9 miles. The distance between Science building and Main Office on the map is about 7/4 inches. What is the actual distance between two places?
a. 54/9 miles
b. 64/7 miles
c. 63/8 miles
d. 99/5 miles
e. 86/3 miles |
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A concert ticket costs $45. If the sales tax is 6.25%, what is the total price of the ticket?
a. $47.81
b. $59.64
c. $42.35
d. $68.98
e. $53.62 |
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In Chemistry class, Grace heated 20 milliliters of water. She let the water boil for several minutes. Afterward, only 17 milliliters of water remain. What is the percent od decrease of water due to evaporation?
a. 13
b. 20
c. 24
d. 15
e. 19 |
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| The time to finish a ride is directly proportional to the distance covered. If the car can tracel 4 miles in a minute, how many miles can it travel in 10 minutes? |
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3x-5y=-16
2x+5y=31
What is the value for x? |
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