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natita [175]
3 years ago
6

A culinary club earns $1360 from a dinner service. They sold 45 adult meals and 80 student meals. An adult meal costs twice as m

uch as a student meal. What is the cost of an adult meal?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0

Answer:

$16

Step-by-step explanation:

90m+80m=1360

170m=1360

m=8

8 x 2= 16

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A coordinator will select 6 songs from a list of 9 songs to compose an event's musical entertainment lineup. How many different
g100num [7]

Answer:

84 different lineups are possible

Step-by-step explanation:

The order in which the songs are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

6 musics from a set of 9. So

C_{9,6} = \frac{9!}{6!(9-6)!} = 84

84 different lineups are possible

4 0
3 years ago
1. Which equation should be used to find the area of the triangle below? *
77julia77 [94]

Answer:

See Explanation

Step-by-step explanation:

Required

Expression for area of triangle

This is calculated using

Area = \frac{1}{2} * base * height

Assume that:

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The equation becomes

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8 0
3 years ago
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Inessa [10]

Answer:1

Step-by-step explanation: solving for d

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3 years ago
How to solve <br> -9x-4-8+7x=10
inna [77]

Answer:

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Step-by-step explanation:

-9x-4-8+7x=10

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8 0
3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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