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tester [92]
3 years ago
8

There are 158 people singed for a pie-making class They will be divided into groups. Each group will have 15. About how many gro

ups will be formed?
Mathematics
2 answers:
Reil [10]3 years ago
7 0

they formed 11 groups

ikadub [295]3 years ago
4 0

158

÷ 15

10.5333333333


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If cosA=4/5 and cosB=3/5 then find a,b,c
aliya0001 [1]

Answer:

a = 3, b = 4, c = 5

Step-by-step explanation:

Assuming we're working with a right triangle, where c is the hypotenuse, then using the definition of the cosine being the adjacent side over the hypotenuse, then we know:

a = 3, because it is the side adjacent to B

b = 4, because it is the side adjacent to A

c = 5, because it is the denominator in bot fractions

This of course assumes that there is no additional ratio in place.  For example, if the lengths were instead 8, 6 and 10 respectively, then the cosines given would still be 4/5 and 3/5.  Truthfully these only tell relative sizes of the sides, and not their absolute sizes.

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2 years ago
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Step-by-step explanation:

The Law of Cosines can be used to figure this. If the third side is "c", then it tells you ...

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Answer:

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Step-by-step explanation:

S = 18

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Sue gives away x, so subtract it from 18. But Tony gets x, so add it to 18 in his expression.

S = 18 - x

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Sue eats 5 so subtract 5 from her expression. Tony eats half, so divide his expression by 2.

S = 18 - x - 5

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Simplify 18-5.

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