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MAVERICK [17]
3 years ago
5

A plane at 3,800 feet is descending at a rate of 120 feet per minute, and a plane at 520 feet is climbing at a rate of 40 feet p

er minute. In how many minutes will they be at the same altitude? Write a system of equations. Then graph the system to determine the solution.
Mathematics
1 answer:
Llana [10]3 years ago
5 0

so the basic formula for this d = rt

where d is the distance , r is the speed and t is time

 

3800 – 120t = 520 + 40t ( this is the altitude of each plane are equal)

Solve for t

T = 20.5 min time it takes for the planes to be at the same altitude

 

3800 – 120(20.5) = 1340 ft

<span> </span>

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Answer:

each cup would cost $0.52

Step-by-step explanation:

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3 0
2 years ago
If $12000 is invested in an account in which the interest earned is continuously compounded at a rate of 2.5%
vladimir1956 [14]

Complete Question

If $12000 is invested in an account in which the interest earned is continuously compounded at a rate of 2.5% for 3 years

Answer:

$ 12,934.61

Step-by-step explanation:

The formula for Compound Interest Compounded continuously is given as:

A = Pe^rt

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r = 2.5%/100

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The total amount from compound interest on an original principal of $12,000.00 at a rate of 2.5% per year compounded continuously over 3 years is $ 12,934.61.

7 0
2 years ago
Maya has 120 caramel apples to sell. Each caramel apple is covered with one
mylen [45]

Answer:

peanuts=2/5

chocolate chips=1/8

coconut=3/10

rest=sprinkles

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<u>16 + 5 + 12</u>

     60

=33/60

60/60 -33/60

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=9 /20 apples are covered with sprinkles

9/20 x 120

<h2>=63 apples are covered with sprinkles</h2>

Step-by-step explanation:

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The grandmother didn't have to pay
4 0
2 years ago
Read 2 more answers
Need help ASAP
faust18 [17]

Area of a circle = pi x r^2

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Hope this helps!! :)

8 0
2 years ago
Read 2 more answers
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