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UNO [17]
2 years ago
7

Stacy, Oliver, and Jivesh each plan to put a certain amount of money into their savings accounts that earn simple interest of 6%

per year. Stacy puts $550 more than Jivesh, and Oliver puts in 2 times as much as Jivesh. After a year, the amount in Stacy's account is 2 times the sum of $212 and the amount in Oliver's account. How much does each person initially put into his or her account? Who had the most most money in his or her account after a year? Who had the least? Explain.
Mathematics
1 answer:
grin007 [14]2 years ago
6 0


the answer is 772 because if you do 6+2+2+550+212=


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3 years ago
5. What is the probability that in a random sample of 500 adult Americans, less than 51% admit to cheating?
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The right answer is b

Step-by-step explanation:

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5 0
2 years ago
A plane flying horizontally at an altitude of 2 mi and a speed of 540 mi/h passes directly over a radar station. Find the rate a
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Answer:

The plane's distance from the radar station will increase about 8 miles per minute when it is 5 miles away from it.

Step-by-step explanation:

When the plane passes over the radar station, the current distance is the altitude h = 2. Then it moves b horizontally so that the distance to the station is 5. We can form a rectangle triangle using b, h and the hypotenuse 5. Therefore, b should satisfy

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b² = 25-4 = 21, thus

b = √21.

Since it moved √21 mi, then the time passed is √21/540 = 0.008466 hours, which is 0.51 minutes. Note that in 1 minute, the plane makes 540/60 = 9 miles.

The distance between the plane and the radar station after x minutes from the moment that the plane passes over it is given by the function

f(x) = \sqrt{((9x)^2 + 2^2)} = \sqrt{(81x^2+4)}

We have to compute the derivate of f in x = 0.51. The derivate of f is given by

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also,

f'(0.51) = \frac{162*0.51}{2\sqrt{81*0.51^2+4}} = 8.2486

The plane's distance from the station will increase about 8 miles per minute.

4 0
3 years ago
If you buy 20 tickets for $6.00, how much are you paying per ticket?
andrew-mc [135]
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8 0
3 years ago
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zavuch27 [327]

Answer:

no she is wrong

Step-by-step explanation:

7a-4+3a-6=  10a-10 therefore they are not equal

5 0
3 years ago
Read 2 more answers
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