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Karolina [17]
3 years ago
14

20. The middle school track team consists of 7th and 8th graders. There are 79 seventh graders

Mathematics
2 answers:
kolbaska11 [484]3 years ago
5 0
I believe that the answer is 89
viktelen [127]3 years ago
3 0

Answer:

Option A (89)

Step-by-step explanation:

Number of 7th graders :

Let x represent the total number of the team.

The expression will then be:

47% of x = 79

47 / 100 * x = 79

47x / 100 = 79

Cross Multiply.

47x = 79 * 100

x = 7900/47

x = 168.08

x = 168 (approximately)

Therefore, it means we have a total of 168 team members.

Numbers of 8th graders:

Total number of team members minus number of 7th graders

8th graders = 168 - 79

8th graders = 89

There are 89 8th graders on the team

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Hot dog $3.75

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3.75 + 1.25 = 5.00

Difference

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1 year ago
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Thepotemich [5.8K]

Answer:

$9.00

Step-by-step explanation:

If the price is at 30% discount, this means it is 100-30 = 70% of the original price.

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3 years ago
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Olenka [21]
It is A. 2^12.
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Based on the right angle triangle and the given parameters, cos K = 5/13

<h3>Trigonometric ratios</h3>

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Given parameters:

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Therefore,

cos K = adjacent / hypotenuse

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