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UAB Middle School Math Tournament

Team Ciphering Round

October 26, 2024

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6th Grade Representatives and Runners to the front of the room!

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Practice

24 is 60% of what number?

�

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STOP

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Practice Answer

40

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Problem 6.1

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6.1

What is the greatest common factor of 182 and 70?

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STOP

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6.1 Answer

14

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Problem 6.2

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6.2

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STOP

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6.2 Answer

25

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Problem 6.3

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6.3

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Joe went to school at 8:00 AM. He has 4 classes, each lasting 60 minutes and a lunch break for 30 minutes. What time did he leave school?

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STOP

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6.3 Answer

12:30 PM

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Problem 6.4

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6.4

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Simplify the fraction:

133/361

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STOP

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6.4 Answer

7/19

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Problem 6.5

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6.5

Tina doesn’t sleep much, so she ends up counting the number of minutes she has to sleep every night. If Tina went to sleep at 3:14 AM and woke up at 7:32 AM, how many minutes of sleep did she get that night?

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24 of 68

STOP

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6.5 Answer

258

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7th Grade Representatives and Runners to the front of the room!

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Problem 7.1

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7.1

If 25% of P is 50% of D which is 75% of R, what is the value of P if R is 320?

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STOP

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7.1 Answer

30

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Problem 7.2

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7.2

Determine the slope of a line that passes through (9, 4) and

(36, 7)

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STOP

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7.2 Answer

1/9

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Problem 7.3

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7.3

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The sum of 4 consecutive odd integers is 96. What are their values?

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STOP

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7.3 Answer

[21, 23, 25, 27]

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Problem 7.4

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7.4

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Solve for x:

4(x+3)-6 = x+3

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STOP

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7.4 Answer

x = 1

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Problem 7.5

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7.5

A car can travel 25 miles on a gallon of gas. If it travels 385 miles, how many gallons of gas does it use?

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STOP

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7.5 Answer

15.4

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8th Grade Representatives and Runners to the front of the room!

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Problem 8.1

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8.1

Determine the x and y intercepts of the following linear equation:

y = -4x + 20

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STOP

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8.1 Answer

(0, 20), (5,0)

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Problem 8.2

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8.2

A sports club has 300 members. For a home game, 100 of the members decided to wear matching hats while 200 decided to wear matching jerseys. If 50 did not wear either, how many wore both?

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STOP

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8.2 Answer

50

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Problem 8.3

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8.3

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What is the y-intercept of a linear equation that produces a line that passes through (1, 15) and (4, 24).

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STOP

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8.3 Answer

(0, 12)

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Problem 8.4

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8.4

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Solve for x:

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STOP

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8.4 Answer

x = 16

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Problem 8.5

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8.5

Evaluate the following:

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STOP

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7.5 Answer

12

68 of 68

That concludes the ciphering round!