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Dafna11 [192]
3 years ago
9

Please help!! final exam!! if x varies directly as y, and x=20 when y=4, find x when y=9

Mathematics
1 answer:
Dominik [7]3 years ago
7 0

Answer:

X=45

Step-by-step explanation:

Multiple y by 5

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Answer: The Smith family price for the meal is  $36.39

Step-by-step explanation:

The Smith family went out to dinner. • The price of the meal was $29.85.

The sales tax was 6% of the price of the meal.

LEts find sales tax amount

sales tax amount = price of meal * sales tax 6%(0.06)

= 29.85 * 0.06 = 1.791

sales tax amount = 1.791

Price of the mean with sales tax = 29.85 + 1.791= 31.641

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now we find out tip amount for 31.641

15 % is 15/ 100 = 0.15

Tip amount = 31.641 * 0.15 = 4.74615

Now we add the top amount with 31.641

31.641+ 4.74615=36.38715

the Smith family price for the meal = $36.39

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