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2 years ago

How much money was originally in an account if the balance is 10,399.86 if the interest compounded quarterly over eight years?

Mathematics

1 answer:

nlexa [21]2 years ago

5 0

Sorry I’m not sure but maybe you could look it up???

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If 45% of a number is 99 and 35% of the same number is 77, find 80% of that number.

Dovator [93]

Answer:

176 = 80% Extra: If you need 100% its, 220

Step-by-step explanation:

99+ 77 is 176

45% + 35% = 80%

7 0

2 years ago

A plane averaged 800 mph on a trip going east, but only 400 mph on the return trip. The total flying time in both directions wa

galina1969 [7]

Answer:

1200 miles.

Step-by-step explanation:

Let d represent one way distance.

We have been given that a plane averaged 800 mph on a trip going east, but only 400 mph on the return trip.

$\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

The time taken while going east would be $\frac{d}{800}$ .

The time taken while returning back would be $\frac{d}{400}$ .

Since the total flying time in both directions was 4.5 hr, so we will equate sum of both times with 4.5 as:

$\frac{d}{800}+\frac{d}{400}=4.5$

Make a common denominator:

$\frac{d}{800}+\frac{d*2}{400*2}=4.5$

$\frac{d}{800}+\frac{2d}{800}=4.5$

$\frac{d+2d}{800}=4.5$

$\frac{3d}{800}=4.5$

$\frac{3d}{800}\times \frac{800}{3}=4.5\times \frac{800}{3}$

$d=1.5\times \frac{800}{1}$

$d=1200$

Therefore, the one-way distance was 1200 miles.

5 0

2 years ago

Solve the inequality for c.<br> .<br> Simplify your answer as much as possible.

krek1111 [17]

Answer:

$w$

Step-by-step explanation:

Solving the inequality for $w$ , we do algebra manipulation, we get:

$5w-22>-4(2-3w)\\5w-22>-8+12w\\-22+8>12w-5w\\-14>7w\\\frac{-14}{7}>w\\-2>w$

Which means $w$ is LESS THAN $-2$

Writing this with the variable to the left side:

$w$

This is the correct answer.

5 0

3 years ago

Read 2 more answers

The circular top of a clay pot has a diameter of 14 centimeters . What is the circumference of the pot's circular top ? Use 3.14

inna [77]

Answer:

Circumference formula is πr². while we do not have the radius, you do have the diameter, the diameter is the full length of the circle while the radius is half of the circle. So you take 14/2=7 so the new equation is π7² so you would do 7x7 to get 49, then you would do 49 x 3.14 and you'll have 153.86 Centimeters². You'll need to double check this but I hope this helped.

6 0

2 years ago

If a<0 and b>0 is ab<0?

salantis [7]

Answer:

Yes.

Step-by-step explanation:

Any number less that 0, when multiplied by a positive number, will make it a negative number.

3 0

2 years ago