Mathematics Middle School

r+(-5r)


Combine the like terms to create an equivalent expression:

Answers

Answer 1

Answer:

Remove parentheses.

r-5r

Simplify.and the answer will be

-4r

Anytime love

Step-by-step explanation:

Related Questions

how many hundredths= 80 thousandths?
Please help.

Answers


Eight thousands equals to eighty hundred :)

Answer:

8 hundredths

Step-by-step explanation:

.

Pleasee helpp meeeee

Answers

Answer: 125*

Explanation: a line is 180*. Angle R is 55. Subtract 180 - 55 = 125.
Answer is 125

Explanation

need help, please
fast I give brainly

Answers

the coordinate pair would be (2,2) because the transformation is moved up 2 over 2.
It would be (2, 2)
Hope this helps!

find the x-intercepts of the function g(x)=8x^{2} −10x−3

Answers

Answer: [tex][-\frac{1}{4}, \frac{3}{2}][/tex]

Step-by-step explanation:

Factor:

[tex]g(x) = 8x^{2} -10x-3[/tex][tex]g(x) = x^{2} -10x-24[/tex] ---> multiply constant (3) by coefficient of first term[tex]g(x) = (x+\frac{2}{8})(x-\frac{12}{8} )[/tex] ---> factor (multiplies to 24 and adds to -10. Divide factors by 8 since you multiplied by 8 in previous step)[tex]g(x) = (x+\frac{1}{4})(x-\frac{3}{2})[/tex] ---> simplify[tex]g(x) = (4x+1)(2x-3)[/tex] ---> move denominator of fraction to be coefficient of x

Solve:

[tex]0 = (4x+1)(2x-3)[/tex] ---> set equation equal to 0.[tex]0 = 4x + 1[/tex] ---> make each parentheses equal to 0.[tex]-1 = 4x[/tex] [tex]-\frac{1}{4} = x[/tex] ---> x intercept[tex]0 = 2x - 3[/tex] [tex]3 = 2x[/tex] [tex]\frac{3}{2} = x[/tex] ----> x intercept

Of the 350 solitaire games that Jay played, he won 154 times. What percent of the games did Jay win?

Answers

Step-by-step explanation:
To find the answer we first have to find the value of each percent, to do this we divide 100 by 350, that gets us approximately 0.286. We know that he won 154 of them we then multiply 154 by 0.286 to get the percentage of games he won and we get 44.044.

Answer:

44%

Step-by-step explanation:

154 ÷ 350 x 100 is 44%

hope this helps

Which equation represents the pictorial model below?

Answers:

5 x 0.10 = 0.50


0.17 x 3 = 0.51


3 x 0.15 = 0.45


7 x 0.13 = 0.91

Answers

Answer:

3x0.15=0.45

Step-by-step explanation:

The answer is 3times 0.15 = 0.51

One side of a cube measures 3.5 in. What is the volume of the cube rounded to the nearest hundredth? ( Volume = LWH)

42.88 inches
42.88 inches cubed
43 inches cubed
42.88 inches squared

Answers

Answer:

Literally look it up on a calc

Step-by-step explanation:

42.88 inches cubed

because 3.5•3.5•3.5 is 3.5 to the third power

Nelson is planning out his monthly budget and estimates that he spends $250 on food each month. When he got his bank statement, he discovered that his actual food expense for the month was $315. Calculate his percent error. Round to the nearest whole percent.

Answers

Answer:

21

Step-by-step explanation:

250 / 315 = 0.79

0.79 x 100 = 79

100 - 79 = 21

It it 21% error goodluck with future maths

Save more time. Make more money. It's that simple.
Let's figure out the perfect pole radius for ANY lawn you
might have to mow.
Use variables to write an expression for the perfect pole
radius (R) given the width of the lawnmower (W) and
the length of the rope (L).
R=

Answers

Answer:

This is the first of several posts where I'll use the activities Desmos ... for the pole radius (R) that will make the lawnmower cut the lawn in a perfect spiral. Given the width of the pool in tiles (n), write an expression for the  In each case, students are more likely to see algebra as power than punishment

Step-by-step explanation:

This is due today please help

Answers

Lateral is 13.8cm
Total surface area is 32cm
Lateral is 13.8 and the total surface area is 32

Plsssssssssss Help!!!!!
Which equation to represent a relationship where Y is a nonlinear function of X? Select all that apply.

Answers

Answer: A : no

              B : no

              C : yes

              D : yes

              E : yes

              F : yes

PLEASE GIVE BRAINLIEST

HELPP MEE THIS MY THIRD TIME ASKING THIS QUESTION: What is the unit rate of the Rosk Construction

Answers

Answer:

what do you want me to figure out???

Shaquille bought 12 jumbo packs of trading cards. Each jumbo pack contains 33 cards. How many trading cards did Shaquille buy?

Answers

Answer:

396 cards

Step-by-step explanation:

33 cards * 12 packs = 396 cards

396 cards. 12x33 equals 396 cards

A figure is dilated by a scale factor of 1/2. If the origin is the center of dilaton, what is the image of a vertex located at (3, 4)?

Answers

Answer:

(9,12).

Step-by-step explanation:

If a figure dilated by a scale factor of k and origin is the center of dilation, then the relation between point and its image is defined asnIt is given that a figure is dilated by a scale factor of 3 and origin is the center of dilation. So, We need to find the image of a vertex located at (3, 4). So, substitute x=3 and y=4 in the above rule of dilation. Therefore, the image of a vertex located at (3, 4) is (9,12).

Answer:
(9,12).
Step-by-step explanation:
If a figure dilated by a scale factor of k and origin is the center of dilation, then the relation between point and its image is defined as

It is given that a figure is dilated by a scale factor of 3 and origin is the center of dilation. So,

We need to find the image of a vertex located at (3, 4). So, substitute x=3 and y=4 in the above rule of dilation.


Therefore, the image of a vertex located at (3, 4) is (9,12).

Which of the following statements correctly compares the rate of change for the money earned,
measured as dollars per delivery, between 2 and 4 deliveries and 6 and 8 deliveries?
A. The rate of change is the same between the two time intervals.
B. The rate of change is larger between 2 and 4 deliveries than 6 to 8 deliveries.
C. The rate of change is smaller between 2 and 4 deliveries than 6 to 8 deliveries.
D. The rate of change is a positive value between 2 and 4 deliveries and a
negative value between 6 and 8 deliveries.

Answers

B or c is the answer
C is the correct answer

HELP PLEASE EXPLAIN!!!!!!

Answers

Answer:

B) (6,21)

Step-by-step explanation:

x is increasing by 2 and y is increasing by 7 so the next pair would be (6,21)

Answer:

(-6,-21)

Step-by-step explanation:

because the the 14 + 7= 21 and 4 +2= 6 and the x/y is labeled on the left side so it would be the negative one or the first one

A rectangle has a side length of two and seven eighths feet and a side width of 5 feet. What is the area of the rectangle?

six and five eighths ft2
nine and two eighths ft2
fourteen and one eighths ft2
fourteen and two eighths ft2

Answers

Answer:

six and five eighths ft2

Step-by-step explanation:

4. Find the sale price of $4,200 with a 35% markdown. (Change 35% to a decimal by dividing by a 100 then multiply by 4200 to get the markdown. Then subtract Markdown from 4200) For a Markup you would add.

Answers

Answer:

$27.30

Step-by-step explanation:

4200÷100=42

1% = 42

42×35=1470

4200-1470=2730

What is the volume, in cubic inches, of a cube with edge lengths of 1/2 inch?

Answers

An 9 in. 8 in. 4 in. 2 in. 6 in.

Step-by-step explanation:

Answer: I’m telling you it’s 8 squares
I already answered this but I’m positive it’s that and I’ll give a actual explanation
Explanation: 1 square fits 4 times in each side, and if you were to make this irl with little blocks or something it would be proven, I promise it’s 8

Ruth found 50 chairs for $10. Please help Ruth by figuring out the ratio. (round to 2 decimal places)

A. $5.00 per chair

B. 5 chairs per dollar

C. 0.5 chairs per dollar

D. $0.50 per chair

Answers

Answer:

A. $5.00 per chair

Step-by-step explanation:

50÷10=5

I think the answer is A

Find the LCM for 12 and 18.

Answers

Answer:

36

Step-by-step explanation:

least common multiple

Another helppppppp..........

Answers

12 cups I believe ! Hope this helps!

Answer: 12

Step-by-step explanation:

A jar has 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability that you would choose a red marble, KEEP it, then choose a green marble?

1/2
1/4
1/8
1/9

Answers

Answer: I think it’s 1/8

Answer:

1/9

Step-by-step explanation:

Use the distributive property to simplify: 5(a+3b-2)***For your answer, DON'T use spaces. *

Answers

The answer is 5a+15b-10

5 x a is 5a. 5 x 3b is 15b and 5 x -2 is -10.
You then put them together 5a+15b-10

Answer:

5a+15b-10

Step-by-step explanation:

I need help with this plz and thank you

Answers

Answer:

The answer is: w  =  − 30

Rectangle A has a length of 6 and width of 4. Rectangle A prime has a length of 9 and width of 6.
Find the scale factor of the dilation shown.
1/2
3/2
2
2/3

Answers

Answer:

2

Step-by-step explanation:

divided by 2/3 then add the 9 and the 6 and subtract the total

Answer:

3/2

Step-by-step explanation:

correct me if im wrong please

A new bank customer with ​$4000 wants to open a money market account. The bank is offering a simple interest rate of ​%1.8.

a. How much interest will the customer earn in ​years?

b. What will the account balance be after 20 ​years

Answers

Answer:

The answer is 1,440 (sorry if it's wrong)

Step-by-step explanation:

so you multiply 4,000 by 1.8% which u will get 72 then multiply 72 by 20 and then that will get you 1,440 again sorry if it's wrong

I just solve dit on my calculator and the answer is 1440!

If Joe has 50 carrots and gives Beth 75 and his cousin died tomorrow, how long will it take for a wheel to do a full rotation while the car is off on a Sunday?

Answers

Answer:

28 hours

Why? Just because.

Hi I need this asap please help :/

Answers

Answer:i think the answer is 2

Step-by-step explanation:

HELP ME (also simplifying)

Answers

Answer:

i cant see it

Step-by-step explanation:

1) 47/7
2) 47 to 7
3) 47:7
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