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zysi [14]
3 years ago
7

Netan surveyed 460 teenagers to find out their favorite type of movie. He found that 45% of the teenagers surveyed like comedies

.
Part A: How many teenagers surveyed like comedies? Show your work. (4 points)

Part B: In another survey, Hannah found that 50% of the total number of teenagers surveyed like thrillers. If 40 teenagers like thrillers, what is the total number of teenagers that Hannah surveyed? Show your work. (4 points)

Part C: Give an example of a situation in which a percentage is greater than 100%. (2 points)
Mathematics
2 answers:
Wittaler [7]3 years ago
4 0

Answer:

Part A: 270 teenagers like comedy because 460 x 0.45 = 270

Part B: 80 teenagers Hannah surveyed because 40 divided by 0.5.

Part C: Suppose you sell bags of popcorn for movies and sell -

10 bags of popcorn in the afternoon.

20 bags of popcorn in the evening.

The number of popcorn you sell in the evening is 200% of the number you sold in the afternoon. It is twenty times as many.

<em>HOPE I HELPED! :3</em>

Irina-Kira [14]3 years ago
3 0

Step-by-step explanation:

A- 207 multiple 460 by 0.45

B- if 50 percent is 40 just multiply 40 by 2 its 80

C suppose you own a hot dog wagon and sell the following:

10 hot dogs in the morning

30 hot dogs in the afternoon

The number of hot dogs you sell in the afternoon is 300% of the number you sold in the morning. It’s three times as many.

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3 years ago
Identify is this is percent increase or percent decrease, then calculate percentage
vlabodo [156]

<em>Last year the chess club had 30 members. This year the club has 24 members. </em>

Last year, the chess club had 30 members. This year, the club has 24 members. Since this year had less than last year ( 30 > 24), the percent will be decreasing.

To find the percent decrease, you have to use the following formula.

\frac{Difference}{Original} \times 100

Difference refers to the difference between the two numbers, 24 and 30. The difference between 24 and 30 is 6. Original refers to the original number, which is last year's amount of members in the chess group. Therefore, original = 30.

Substitute the numbers into the formula.

\frac{Difference}{Original} =\frac{6}{30} =0.2

To convert the decimal to a fraction, multiply the decimal by 100.

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The answer is the number of chess members decreased by 20%.

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Since I started off by identifying whether it was decreasing or increasing, I did the work a bit differently. When finding the difference, you would usually subtract 30 from 24, which results in -6. Above I used 6, but if you used -6, you would end up with a result of -20%, which means it decreased by 20%. They bot end up with the same result, but you don't always have to first identify whether it's decreasing or increasing.

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