All categories

3 years ago

Pls help I need this and I don’t get it

Mathematics

1 answer:

Jobisdone [24]3 years ago

3 0

Answer:

Step-by-step explanation:

Hi there!

To find the answer to this, plug the number values in for n and then solve.

For the answer to be correct, the sum has to be less than 26.

Answers B and D both have numbers that would be equal to 26, so they aren’t right.

Answer A has numbers that would go over 26.

Every number in C can be added to 15 and the sum would be less than 26.

I hope this helps!

You might be interested in

-4 1/2 ÷ (-2 2/3) I need it as a mixed number in simplified form.

Leya [2.2K]

(-4 1/2) / (-2 2/3) =.....turn to improper fractions
(- 9/2) / (-8/3) =...when dividing fractions, flip what u r dividing by, then multiply

-9/2 * -3/8 =
27/16 =
1 11/16 <==

4 0

3 years ago

What is the solution to the following equation? 5 + 3 (y - 4) = 4y +10

Umnica [9.8K]

Answer:

5 +3(y-4) = 4y +10

5 + 3y -12= 4y +10

-7 +3y = 4y + 10

3y - 4y = 10 + 7

-y = 17

y= -17

8 0

2 years ago

Read 2 more answers

3/10 in.=7/8 mi. (i am doing rates and ratios)

harkovskaia [24]

3/10 in
1 in =(1/12)ft 
1 ft =(1/5280) mi 

3/10 in=3/10*(1/12)*(1/5280) mi

5 0

3 years ago

119. Beatrice decides to deposit $100 per month at the end of every month in a bank with an annual interest rate of 5.5% compoun

sveta [45]

Answer:

Beatrice will accumulate $1230.72 at the end of the year.

Step-by-step explanation:

We can write:

$(1+\frac{0.055}{12})=z$

$100=C$ for deposits

The first month would have only the deposit reflected in her balance, then, expanding some steps of the calculation would yield:

$S_{1}=C\\S_{2}=Cz + C\\S_{3}=Cz^{2}+Cz + C\\S_{n}=Cz^{n-1} +...+Cz+C$

A geometric series is given by:

$1+x+...+x^{m}=\frac{x^{m+1}-1}{x-1}$

Translating our series to the short form:

$S_{n}=C(\frac{z^{n}-1}{z-1} )$

plugin in the values for the 12 month gives:

$S_{12}=100(\frac{(1+\frac{0.055}{12})^{12} -1}{\frac{0.055}{12}})=1230.7169$

3 0

3 years ago

What is y - 3y please

tatyana61 [14]

Answer:

=-2y

Step-by-step explanation:

y-3y

=-2y

5 0

3 years ago