Mathematics Middle School

find the sum of the first 13 terms in the series -5+1+7...+67

Answers

Answer 1
this is an arithmetic series with common difference 6 

S13  = (13/2)[2*-5 + (13-1)*6)]  =  403

Related Questions

Find the product. ( 4 5 )( 9 5 )(− 1 2 )

Answers

Do you mean 45x95x-12? If so the answer is -51300

Find the product.

(5)(−9)(−2)

A) −63  

B) −90  

C) 72  

D) 90  

E) −84


the correct answer is D).90

Writing and reasoning : how do you know that 2+4= 4+2? Explain

Answers

You can solve each side
2+4=6
4+2=6
6=6
Therefore 2+4=4+2

What does 6/4 equal and show work and steps

Answers

Or you can just use the calculator it's easier. Answer 1.5 lol
Hey there! 

If you're for this as a decimal then your answer would be: [tex]1.5[/tex] because we had to divide the numerator from the denominator 

But if we're trying to find the simplification, then follow these steps to find the answer
[tex]Two [/tex] goes into both numbers
so we have to divide both of the numbers by [tex]2[/tex]
Like: [tex] \frac{6/2}{4/2} [/tex]
[tex] \frac{6}{2} = 3 \\ \\ \\ \\ \frac{4}{2} = 2 \\ \\ \\ \\ \\ \\ Fraction: \frac{3}{2} \\ = 1\frac{1}{2} [/tex]

[tex]Decimal: 1.5\\ \\ \\ \\ Fraction: \frac{3}{2} = 1\frac{1}{2} [/tex]

Good luck on your assignment and enjoy your day

~[tex]MeIsKaitlyn:)[/tex]

Mixed numbers from 6to 7 with an interval of 1/3 between each mixed number

Answers

We should add 1/3 to each preceding number. So:

6, 6 + 1/3, 6 + 1/3 + 1/3, 6 + 1/3 + 1/3 + 1/3
6, 6 1/3, 6 2/3, 6 + 1
6, 6 1/3, 6 2/3, 7

Hope this helps!

A bag contains 4 red marbles and 6 blue marbles. Brandon selects one marble from the bag. Without replacing the marble he then selects a second marble. What is the probability that he first selects a blue marble and then selects a red marble?

Answers

Answer:D) 4/15

Step-by-step explanation:

6/10•4/9=4/15 mark brainliest please.

The probability that he first selects a blue marble and then selects a red marble is 4/15.

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Given,

The number of red marbles in bag=4

The number of blue marbles in bag=6

The total number of marbles in bag are 4+6=10

The probability of selecting a blue ball is 6/10

The probability of selecting a red ball without replacement is 4/9

So the probability that he first selects a blue marble and then selects a red marble

6/10×4/9

24/90

4/15

Hence the probability that he first selects a blue marble and then selects a red marble is 4/15.

To learn more on probability click:

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Parts of the computer that you can physically touch are refered as?

Answers

Keys in keyboard. that is part of computer science.
Components, I'd assume? There are a ton of components that make up a computer (transistors, CPUs, motherboards, etc.), but "component" is the most common term I've heard for them as a group.

Will give BRAINLIEST if right!
The E. coli bacterium is about 5×10^−7 meters wide. A hair is about 1.7×10^−5 meters wide. Which is wider, the bacterium or the hair?

The bacterium

The same width

The hair

Answers

The hair is wider than the bacterium.

The E. coli bacterium is about 5×10⁻⁷ meters wide, and a hair is about 1.7×10⁻⁵ meters wide.

To compare the widths of the bacterium and the hair, we can convert both measurements to the same unit.

Let's convert the width of the bacterium to micrometers, which is 5×10⁻¹³ micrometers.

The width of the hair is 1.7×10⁻³ micrometers.

Comparing the two measurements, we can see that the hair is wider than the bacterium.

comparing irrational numbers.. Please help quick

Answers

the answer is √(3), √(π), & 2

Evaluate
6h + 2 for h=1

A. 6

B. 8

C. 10

Answers

The answer is B. 8

6 (1) +2
6+2
8
 Original equation: 6h+ 2
Substitute : 6(1) + 2
Order of operations: 6 + 2
Add: 8
ANSWER: 8

Name the slope that passes through 55,67 and 50,68

Answers

its going to be 5,001
what do you mean by slope does it mean what number and if it does then is there a picture for this question

the sum of the cube of a number and 12

Answers

sorry could you explain that better please

Harvey collects rare marbles. He has 112 marbles in his collection. Each tray holds an equal number of marbles. If he uses 7 trays to hold all of the marbles will he display on 3 trays?

Answers

112/7 is 16
3*16=48

There are 48 marbles on 3 trays.

the bakers at healthy bakery can make 220 bagels in 10 hours.How many bagels can they bake in 13 hours? what was that rate per hour?

Answers

First you need to divide 220/10 to see how many bagles they make an hour. 
220/10=22 
Then you Multiply 22*13 and you get 286.
So they make 286 bagels in 13 hours. 
So first you need to find how many bagels they can make in one hour. You do this by doing 220/10 to find they can produce 22 bagels per hour. Then, you just multiply 13 by 22 to find that they can bake 286 bagels.

Find the slope of the line passing through the points (1,0) and (6,5).

Answers

slope = (5 - 0)/(6 - 1) = 5/5 = 1
answer
1

Hi there!

Step-by-step explanation:

[tex]SLOPE=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}[/tex]

[tex]\frac{5-0}{6-1}=\frac{5}{5}=1[/tex]

Slope is 1.

Final answer is 1.

*The answer must have a positive sign.*

Hope this helps!

Thanks!

Have a nice day! :)

:D

Use properties of addition and subtraction to evaluate the expression.

−57−14−23

Answers

-57 - 14 - 23 = -57 - 37 = -94

-94 is your answer

hope this helps

*May Joan of Arc bring you good tidings
-94 should be ur answer!!!!!!!!!!

plz hurry up I will make brainlest answer if you get it right and do it quick. plz hurry up.

Answers

The right answer is y = 1/2x + 6. 
     
     y - 8 = 1/2(x - 4)
     y  - 8 = 1/2x - 2
        + 8           + 8
 ----------------------------
     y = 1/2x + 6

In a basketball game, all together the top three players scored a total 55 points. Steph scored five more points than Klay. Andre scored four less points than Klay. How many points did each player score? Can you show me the work?

Answers

Steph = x + 5

Klay = x

Andre = x - 4

I will set it up and you finish.

Here is the equation you need:

x + 5 + x + x - 4 = 55

Can you finish on your own?

Kandace drives 48 miles each way to work.She works 5 days a week.Her car gets 32 miles per gallon of gas.If gas costs $3.79 per gallon, how much does she spend for gas to drive to work each week?

Answers

48 * 5 = 240
240 / 32 = 7.5 gallons a week ( $28.42)

Melissa wants to buy a new pair of shoes that have an oringinal price of $45 . Melissa has a coupon for 20 percent off to use on them , which amounts to a discount of $9 . If sales tax is 9 percent on the final price of shoes , how much tax will she need to pay?

Answers

The correct answer is 3.24
45 - 9 = 36

In that case you would multiply 36 by .09 or 9% (either way is fine)

36 * .09 = 3.24

And when you multiply with a decimal, you don't have to line it up, just make sure you move your decimal to the correct place after you find the outcome

Marina bought 2.6 pounds of fifish at. the fish market. the total cost was 38.87. what was the price of the fish per pound?

Answers

it is 15 dollars per pound and the 0.6 is 8.87 dollars
The cost per pound would be 15$

f(x)= 2-1/x
g(x)= x/2

what is f(g(x))?

Answers

To find f(g(x)), plug g(x) into f(x) and simplify.

f(x/2) = 2 - 1/(x/2)

All you have to do is simplify the right side of the equation.

Take it from here.



Which side of the equation 12.6v = 12 - 15.5v would you isolate the variable terms? Why?

Answers

The left side, because you only need to move one thing, and you don't need to subtract after that. (you can add, much more easier)

hope this helps

A truck can be rented from Company A for ​$120 a day plus ​$0.50 per mile. Company B charges $30 a day plus ​$0.80 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for Company A and Company B are the same.

Answers

120 + 0.5x = 30 + 0.8x 

90 = 0.3x

x = 300

The charges of both companies will be same if truck is driven 300 miles per day.

It is required to find the number of miles in a day.

What is equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign. Equation, statement of equality between two expressions consisting of variables and/or numbers.

Given:

Let the truck is driven X miles per day

Charges of company A will be = $120 + $0.50x

Charges of company B will be = $30 + $0.80

Let us find out value of X when charges of both companies are same

Now the following equation should be made

$120 + $0.50x = $30 + $0.80

$120 - $30 = $0.80x - $0.50x

$90 = $0.30x

x = 300 miles.

Therefore, the charges of both companies will be same if truck is driven 300 miles per day.

Learn more about equation here:

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Help! I an stuck on this and have no idea what to do

Answers

the polygon would remain the same ( same side lengths, angles, etc.)

 it would just move the polygon 3 units down and 2 units to the left 

The marching band organizes 80 students into 6 lines. How many students are in each line and how many students are left over?

Answers

Do do this, we can simply divide 80 by 6.
First, lets find how many times 6 can go into 80.
6 goes into 80 13 times without going over.
Now, we multiply 13x6 and that's 78.
Since there was 80 to begin with, and we ended up with 78, there would be 2 people left over. So:
There are 13 students in each line and 2 left over.

Answer:

SHUT UP YOU FORTNITE KID

Step-by-step explanation:

2.4 times as many of 2.08

Answers

4 • 2.08 would equal to 8.32

What is 3/5 divided by 4/7 divided by 9/10

Answers

0.00023809523this is 3/5 divided by 4/7 divided by 9/10 in a calculator.

Hi there! To divide fractions, all you have to do is keep the first fraction, change the division into multiplication, and flip the second fraction over. 3/5 * 7/4 is 21/20. Now, we have to divide again. Repeat the steps. 21/20 * 10/9 is 210/180 or 1 1/6 in mixed number form. There. The quotient for that problem is 1 1/6.

Help.

For problem 135 ÷ 5, draw two different ways to break apart the array. Use the distributive property to write products for each different way.

And help with the picture, only the circled ones (1 and 2)

Answers

36 divided by 3= 12, 3x12=36 and 12x3=36 divided by 3=12 and 36 divided by 12=3

your dog is havynbik hdsgy

Answers

37.8 - 28.5 = 9.3 lbs. The cat weighs 9.3 pounds
The cat weight is 9.3 pounds -I hope this helps

Julian walks a total of 900 meters to work each day. How far does he walk in 10 days

Answers

900 * 10 = 9000

the correct answer will be A 
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