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marissa [1.9K]
3 years ago
7

Marissa and haylie met for dinner in downtown Savannah. Marissa did flat-rate valet parking for $20. Haylie went to another vale

t and paid $5 up front and $2.50 for every hour, including the first hour. Ultimately the friends end up paying the same amount. How long did they stay? How much did each one pay?
Mathematics
1 answer:
shtirl [24]3 years ago
4 0

Answer:

6 hours; each paying $20

Step-by-step explanation:

To start off, we know that Marissa paid exactly $20 for parking. Since we know that Marissa and Haylie paid the same amount, we must now move on to Haylie.

Haylie paid $5 upfront. Now we must figure out how many hours Haylie must have stayed if each hour costed $2.50. We can figure this out by dividing $15 by $2.50 since Haylie already paid $5 upfront.

$15 / $2.50 = 6

This means that Haylie and Marissa stayed for 6 hours and paid exactly $20 dollars each.

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Step-by-step explanation:

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2 years ago
Find the sum that amounts to Rs 9,144 in 3 years at 9% per year simple interest.​
Hunter-Best [27]

Given:

Amount = Rs. 9,144

Time = 3 years.

Rate of simple interest = 9%

To find:

The principal value.

Solution:

The formula for simple interest is:

I=\dfrac{P\times r\times t}{100}

Where, P is principal, r is the simple rate of interest, and t is the number of years.

Putting r=9,t=3 in the above formula, we get

I=\dfrac{P\times 9\times 3}{100}

I=\dfrac{27P}{100}

I=0.27P

We know that,

\text{Amount}=\text{Principal + Interest}

9144=P+0.27P

9144=1.27P

Divide both sides by 1.27, we get

\dfrac{9144}{1.27}=P

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Therefore, the principal value is Rs. 7200.

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The price of a television in a certain store was a dollars in June. On the first day of each month after June, the price was red
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Step-by-step explanation:

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