2 years ago

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Mathematics

1 answer:

WARRIOR [948]2 years ago

4 0

Answer: ok im following but brainly?

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If George put $600 in a savings account at a simple interest rate for each year. What was his interest rate, r, if after 3 years

egoroff_w [7]

Answer:

Step-by-step explanation:

The multiplier on George's money is ...

$708/$600 = 1.18

This value is ...

1 + rt = 1.18 . . . . . for t = 3

3r = 0.18 . . . . . . subtract 1; next divide by 3

r = 0.06 = 6%

The simple interest rate on George's account is 6%.

8 0

3 years ago

A fountain, 3 ft in diameter, sits in the center os a circular duck pond. The pond measures 3 ft from the fountain to its edge.

umka2103 [35]

Answer:

$56.55\ ft^2$

Step-by-step explanation:

We know that the diameter of the fountain is 3 feet and that it is in the center of the pond.

We know that the area of a circumference is:

$\pi(r)^2$

where r is the radius of the circumference.

further

d = 2r

Where d is the diameter of the circumference.

Then the radius $r_1$ of the source is 1.5 ft.

The radius $r_2$ of the pond is 1.5 + 3 = 4.5 ft

Finally the area of the pond is equal to the area of the ring that is shown in the image

$A = \pi(r_2)^2 - \pi (r_1)^2\\\\A = \pi(4.5)^2 - \pi(1.5)^2\\\\A = \pi(4.5^2 - 1.5^2)\\\\A = 18\pi = 56.55\ ft^2$

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2 years ago

In a direct variation, the ratio of y -values to x -values is equal to a constant.

liberstina [14]

Answer:

True

Step-by-step explanation:

The equation of direct variation is

y = kx ← k is the constant of variation

To find k divide both sides by x

$\frac{y}{x}$ = k

That is the constant is the ratio of y- values to x- values

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2 years ago

Zelmas friend told her that she could earn $54 for cleaning up after a birthday party. Zelma wants to calculate the hourly rate

Alik [6]

Nothing it can be the

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3 years ago

Read 2 more answers

Calculate the interest earned and total amount of money for the following: 1. Principal: $4,500 Interest: 7% 2. Principal: $1,50

Dafna11 [192]

I forgot how to do this sorry.

4 0

3 years ago