All categories

3 years ago

What is the value of n?

Mathematics

1 answer:

BARSIC [14]3 years ago

6 0

Answer:

n=4

Step-by-step explanation:

7n-3n=16

4n=16

n=16/4

n=4

You might be interested in

How do I do 13 • 0 • p

V125BC [204]

It is 0. Anything times 0 is 0.

8 0

3 years ago

Determine the payment to amortize the debt. (Round your answer to the nearest cent.) Monthly payments on $170,000 at 4% for 25 y

Makovka662 [10]

Answer:

The payment would be $ 897.32.

Step-by-step explanation:

Since, the monthly payment of a loan is,

$P=\frac{PV(r)}{1-(1+r)^{-n}}$

Where, PV is the present value of the loan,

r is the monthly rate,

n is the total number of months,

Here,

PV = $170,000,

Annual rate = 4 % = 0.04

So, the monthly rate, r = $\frac{0.04}{12}=\frac{1}{300}$ ( 1 year = 12 months )

Time in years = 25,

So, the number of months, n = 12 × 25 = 300

Hence, the monthly payment of the debt would be,

$P=\frac{170000(\frac{1}{300})}{1-(1+\frac{1}{300})^{-300}}$

$=897.322628506$

$\approx \$ 897.32$

3 0

3 years ago

You earn a salary of R6 000 per month. Your employer indicates that he will give you a 20% increase. How much will your salary b

alexdok [17]

Answer:

R7,200

Step-by-step explanation:

We find the new salary by multiplying the old salary by 20% and adding this value to the old salary.

Thus, we have 6,000 + (6,000 * 0.20) = 6,000 + 1,200 = R7,200

7 0

2 years ago

The length of two complementary angles are x and 2x+12. Find the measures of the angles.

Shtirlitz [24]

There's no such thing as the "length"of an angle.
But we know what you're getting at.

You have said that the angles are complementary. If two angles are
complementary, then their sum is 90 degrees, so we can take your
two angles and write:

 x (one angle) plus (2x + 12) (the other one) = 90 degrees

 x + 2x + 12 = 90

Subtract 12 from each side: x + 2x = 78

Add the x's on the left side: 3x = 78

Divide each side by 3 : x = 26 degrees

One angle is 'x' = 26 degrees

The other one is (2x + 12) = 52+12 = 64 degrees

4 0

4 years ago

a carpenter compares the masses of two types of wood. A cubic meter of ash is 540kg.A cubic meter of willow is 420kg.what is the

bagirrra123 [75]

420:540 or 70:90 or 35:45 or 7:9

Choose either one if I'm wrong I'm sorry

8 0

3 years ago