3 years ago

If the simple interest on $3000 for 8 years is $1680, then what is the interest rate?

Mathematics

1 answer:

Fiesta28 [93]3 years ago

3 0

R=i/pt
R=1680/3000*8=1,680÷24,000
=0.07*100=7%

You might be interested in

What does x equal in the equation 4x + (−3) = 5x + 3?

fgiga [73]

Answer:

x = -6

Step-by-step explanation:

First write the equation.

4x + -3 = 5x + 3

The isolate x in the equation. Add -4x to both sides.

4x + -3 + -4x = 5x + 3 + -4x

-3 = x + 3

Then add -3 to both sides.

-3 + -3 = x + 3 + -3

-6 = x

Now you have the value of x = -6.

Cheers.

3 0

3 years ago

Read 2 more answers

Write two division expressions that have the same value as 36.8 divided by 2.3 (16)

yarga [219]

64 divided by 4=16

144 divided by 9=16

7 0

3 years ago

29,17,38,71,35,63,24. Two numbers that add up to 100. Two numbers which differ by 46, a multiple of 9

Dmitry [639]

2 numbers that add up to 100: 71+29=100

2 numbers which differ by 46: 63-17=46

A multiple of 9: 9x7=63

8 0

3 years ago

Divide ( - 3 z 2 – 15z )÷ ( z + 5 )

blondinia [14]

Factor the numerator to get:

(-3z(z+5))/(z+5) now you notice that (x+5) cancel out leaving:

-3z

4 0

3 years ago

Find the angle of depression from the top of a lighthouse, 260 feet above water to a ship that's 270 feet offshore?

expeople1 [14]

Answer: OPTION C.

Step-by-step explanation:

Observe the triangle ABC attached.

Notice that the angle of depression is represented with $\alpha$ .

Knowing that the top of a lighthouse is 260 feet above water and the ship is 270 feet offshore, you can find the value of $\alpha$ by using arctangent:

$\alpha= arctan(\frac{opposite}{adjacent})$

In this case you can identify that:

$opposite=260\\adjacent=270$

Therefore, substuting values into $\alpha= arctan(\frac{opposite}{adjacent})$ , you get that the angle of depression is:

$\alpha= arctan(\frac{260}{270})\\\\\alpha=43.92\°$

4 0

3 years ago