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Ahat [919]
2 years ago
15

A road 4 inches long on a map is 80 miles long in real life. A river is 2 ½ inches long on the map and is 50 miles long in real

life. Proportional OR Not Proportional
Mathematics
1 answer:
jonny [76]2 years ago
7 0
Not Proportional. Sorry if it’s wrong
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In 10 years, a bank account with a 5.25% annual interest rate earned $18,375 as simple interest. What was the principal amount?
sdas [7]

Answer:

The principal amont was $35,000

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E are the earnings, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

In this problem, we have that:

E = 18375, t = 10, I = 0.0525

We want to find P. So

E = P*I*t

18375 = P*0.0525*10

0.525P = 18375

P = \frac{18375}{0.525}

P = 35000

The principal amont was $35,000

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2 years ago
I need some help please.
Crazy boy [7]

Answer:

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Step-by-step explanation:

A 180 counterclockwise rotation of (5, 4).

The transformation rule is as follows:

(x,y) turns into (-x,-y).

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3 years ago
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Jlenok [28]

Answer:

(9,6)

Step-by-step explanation:

You just take one of the (x,y) pairs and switch the numbers with each other so it's like (y,x)

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3 years ago
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C or A

Step-by-step explanation:

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Find the radius x of OC.<br> a) 4 <br> b) 6<br> c) 12<br> d) 12.8
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Answer:

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