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Rasek [7]
3 years ago
9

A restaurant has one price for adults and another price for children to eat at its buffet. Two families ate at the buffet. The T

raymore family has two adults and three children and their bill was $49.50. The Willis family has three adults and one child and their bill was $44.50. What is the cost for an adult to eat at the buffet and what is the cost of a child to eat at the buffet?
Mathematics
1 answer:
bekas [8.4K]3 years ago
8 0
It costs an adult $12 and a child $8.50 to eat at the buffet.

2a+3c=49.40
3a+1c=44.50

c=44.50-3a

2a+3(44.50-3a)=49.50
-7a+133.5=49.50
a=12

2(12)+3c=49.50
3c=25.50
c=8.50
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Answer:

Option C is the correct answer.

Step-by-step explanation:

Since a random number generator is used to select a single number between 1 and 28, inclusively;

For a fair decision to be made during the process, the number of persons in the set must be a divisor of 28.

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5 0
3 years ago
Factorise 2-y(7-5y) please
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Answer:
(y - 1)(5y - 2)

Solution:

Factor:
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Reorder the expression:
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Rewrite the term:
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Regroup terms into two proportional parts:
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Plot of land between two roads are laid out according to the boundaries shown. The boundaries between the two roads are parallel
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Given: 
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Plot 1           40 yards                       48 yards
Plot 3                x                                56 yards


To solve for x, we get the ratio and proportion of both plots.

40/48 = x/56

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Plot 3 of Chesire Road measures 46.67 or 46 2/3 yards.  Choice A. 


5 0
3 years ago
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32°
ira [324]
I think it’s C


I hope it’s right
4 0
3 years ago
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