MATHEMATICS MIDDLE SCHOOL

Find the sum of the first 12 terms of the sequence. show all work for full credit. 1,-4,-9,-14,...

Answers

Answer 1

Answer:

Let's find the rule where.

1-(-4)=5

-4-(-9)=5

It looks like we are subtracting 5 from the previous number. Since we know the rule, let's write out all.

1, -4, -9, -14, -19, -24, -29, -34, -39, -44, -49, -54; let's add them.

-318 is the sum

Related Questions

Determine the intercept of the line that passes through the following points
A sail on a sailboat is a triangle with two sides perpendicular and each side is a different length. What are the two terms that could be used to describe the sail?
One wall in Zoe's bedroom is 5 feet wide and 8 feet tall. Zoe puts up a poster of her favorite athlete. The poster is 2 feet wide and 3 feet tall. How much wall is not covered by the poster?
5\7m-2-6\7m=-13 what is the answer
Find the value of x and y. WILL MARK BRAINLIEST

125 percent of what number is 25

Answers

20; 125% of 20 is 25
Hope this helps :)

What is the fraction 36/80 expressed in lowest terms?

Answers

Reduce the expression by cancelling the common factors.
9/20

Exact Form:
9/20

Decimal Form:
0.45

Look for common factors and divide them out of both numerator and denominator at the same time.
You know they're both divisible by 2, so you can simplify to 18/40.
As you can see, both numbers are still divisible by 2, so you can go down to 9/20.
At this point, they have no common factors, so the fraction is in lowest terms.

A cable installer chargers $52.50 per hour plus a $75.00 service charge. your father's firm hires him to hook up his company's internet service. Find the total charges if it takes the cable installer 4.5 hours to complete the task

Answers

So the cable installer charges 52.50 an hour. meaning you would multiply that by whatever amount of hours he will work. so 52.50 times 4.5 hours equals $236.25. Now he also charges an extra fee for the service, So we add 75 dollars onto that making it $311.25.

If you want it in formula form here you go

y represent total amount in the end and x equals amount of hours

y=52.50x + 75

y = 52.50(4.5) + 75

y = 236.25 + 75

y = 311.25

One computer processes a company's payroll in 20 minutes. while another computer takes 32 minutes. How long would it take in minutes to process payroll if both computers were used?