MATHEMATICS HIGH SCHOOL

Find the sum of the following nine products: 1 × (10 – 1), 2 × (10 – 2), 3 × (10 – 3), … , 9 × (10 – 9)

Answers

Answer 1

Answer:

Answer:

165

Step-by-step explanation:

We solve the first 5

1*(10-1)=9

2*(10-2)=16

3*(10-3)=21

4*(10-4)=24

5*(10-5)= 25

and notice

when you go from 6 on its getting the same number because say 3*(10-3) = 3*7 and 7*(10-7) = 7*3 and 7*3 = 3*7 so

You add the first 5 integer you solved up

9 16 21 24 25 = 95

and then you double it no extra 25

and then you get 165 = answer

Answer 2

Answer:

Answer:

9, 16, 21, 9

Step-by-step explanation:

I hope this help and it was going in order

Related Questions

Expand and simplify the following expression:
HURRY NEED HELP ILL MARK BRAINLIEST What is the correct expanded form and value of (One-fifth) Superscript 4? One-fifth + one-fifth + one-fifth + one-fifth = StartFraction 4 Over 5 EndFraction One-fifth times one-fifth times one-fifth times one-fifth = StartFraction 1 Over 625 EndFraction StartFraction 1 + 1 + 1 + 1 Over 5 times 4 EndFraction = StartFraction 4 Over 20 EndFraction One-fifth times 4 = StartFraction 4 Over 5 EndFraction
Does anyone seriously know how to do these
BD bisects ABC. m ABD=2y m DBC=5y-12. What is ABC?
Simplify. (15/x-5)-5 = (21/x-6)-7

***Answer when you can!***

Evaluate functions from their graph

g(-4)=??

Answers

Answer:

Step-by-step explanation:

That is the y coordinate when x is -4

I’m pretty sure the answer is -4 grams :)

George usually takes 1.5 hours to mow his neighbor’s grass and trim the bushes. Today he has only 0.75 of the usual amount of time to complete the job. Which operation describes how to find the amount of time George has to complete the job?

Answers

Anyhoot, you can multiply 1.5 by 0.75 to find the time. And you can multiply by 60 to get 67.5 minutes, aka, 1.125 hours

the answer is 1.125 by the way

You have $44 to spend at the music store. Each cassette tape costs $10 and each CD costs $12. Write a linear inequality that represents this situation. Let x represent the number of tapes and y the number of CDs

Answers

10x + 12y <44 is the answer

Answer:

12x + 10y ≤ 44

Step-by-step explanation:

They missed the dash but here u go guys!Good luck!

The ice skating rink charges an hourly fee for skating and $3 to rent skates for the day. Gillian rented skates and skated for 3 hours and was charged $21. Which equation represents the cost, c(x), of ice skating as a function of x, the number of hours of skating?

Answers

c(x) = 6x + 3
shee skated for 3 hrs and was charged $21
c(3) = 6(3) + 3
c(3) = 18 + 3
c(3) = 21
correct....so it is c(x) = 6x + 3

C(x) = 6x + 3 (in USD)

Further explanation

Given:

The fee to rent is $3 for the day.
Gillian rented skates and skated for 3 hours and was charged $21.

Question:

The equation that represents cost, C(x), ice skating as a function of x, the number of hours of skating.

The Process:

We try solving a word problem about the single variable equation.

Step-1: calculate the cost of skates per hour.

Let the rate of using the skating rink be R per hour. We will seek the value of R.

On that day Gillian rented skating for 3 hours and paid $ 21. The equation that will determine this given by:

$\boxed{ \ 3R + 3 = 21 \ }$

Both sides subtracted by 3.

$\boxed{ \ 3R = 18 \ }$

We isolate R on the left side. Both sides are divided by 3.

Hence, the fee of skates per hour is $\boxed{R = \$6}$

Step-2: determine the cost equation for ice skating

Let x as the number of hours of skating.

Recall the fee of skates per hour is $6 and the fee to rent is $3 for the day.

Thus, the equation which represents the cost of ice skating as a function of x, the number of hours of skating, will be given by:

$\boxed{ \ C(x) = 6x + 3 \ }$ (in USD)

Learn more

How much (in US dollars) will you spend on fuel on your trip? brainly.com/question/3959122
Gasoline efficiency in Europe brainly.com/question/1504545
Which expression represents the amount of change Huang should receive? brainly.com/question/13087541

Keywords: the ice skating rink, charges an hourly fee, Gillian rented skates, the equation represents the cost, C(x), a function of x, the number of hours of skating, a word problem, the single variable equation

47/8 as a mixed number

Answers

47/8 can be represented as 5 and 7/8.

How to solve this

To express the fraction 47/8 as a mixed number, we divide the numerator (47) by the denominator (8). The quotient is the whole number part, and the remainder becomes the numerator of the fractional part.

Dividing 47 by 8 yields 5 with a remainder of 7. Therefore, the mixed number representation of 47/8 is 5 and 7/8.

This means that there are 5 whole units and a fractional part that is 7/8 of the whole. In other words, if we divide a quantity into 8 equal parts, we have 5 of those parts and an additional 7 parts out of the 8th part. Thus, 47/8 can be represented as 5 and 7/8

Answers

It takes Omar 30 seconds to eat one considering he ate 8 in 4 minutes ...

If we really wanted to we could turn this into the fraction 8/4
8 being the amount of carrot sticks he ate and 4 being the time it took
now all u have to do is simplify that turns into 2/1 and since the 1 is one minute and her can eat 2 in one minute we can safely say he eats 1 carrot stick every 30 seconds

:) hope this helps!!

Other Questions

If a plane travels 300 mph, how many miles will it travel in 18 min?

What is the aswer ??????

What is the median of 37, 39,40, 42,42, 45, 48, 49, 51, 52?

A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candle has a radius of 0.5 inches and a height of 3 inches. The other two candles are scaled versions of the smallest, with scale factors of 2 and 3. How much wax is needed to create one set of candles? in cubic inches