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erastovalidia [21]
3 years ago
5

Chloe's family ate dinner at a restaurant and the bill was $86. If sales tax was 7.5% and they tipped 20% of the original bill,

what was the total amount that Chloe's family paid for dinner?
Mathematics
1 answer:
Vika [28.1K]3 years ago
7 0

Answer:

109.65

Step-by-step explanation:

If we find what the 7.5% is (6.45) and find what the 20% is (17.20) and add them all together, we get 109.65. If I'm wrong, please correct me. I still have some doubts.

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2 cars c and d started to move to each other car c was 118 miles from Boston car d was 256 miles from Boston car c was going twi
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Answer:

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Step-by-step explanation:

The two cars are moving from different directions. The total distance between the two cars = 118 miles + 256 miles = 374 miles.

Let us assume that the two cars meet at point O, let the distance between car c and O be d₁, the distance between car d and point O be d₂, hence:

d₁ + d₂ = 374 miles       (1)

Let speed of car d be x mph, therefore speed of car c = 2x mph (twice of car d). If it take the cars t hours to meet at the same point, hence

For car c:

2x = d₁/t

t = d₁ / 2x

For car d;

x = d₂/t

t = d₂/ x

Since it takes both cars the same time to meet at the same point, therefore:

d₁/2x = d₂ / x

d₁ = 2d₂

d₁ - 2d₂ = 0         (2)

Solving equation 1 and 2 simultaneously gives d₁ = 249.3 miles, d₂ = 124.7 miles

Therefore the distance from point of meet to Boston = 249.3 - 118 = 131.3 miles

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