i need help with this 1.5r – 3r + 8r + 2.5r i don't get it

Answers

Answer 1

Answer:

9r

Step-by-step explanation:

1.5r+2.5r-3r+8r

4r-3r+8r

r+8r = 9r


Related Questions

An electronics store is selling the latest video game for $59.00. If there is a 10% sales tax, what is the actual cost of the game?

Answers

Answer:

£53.10

Step-by-step explanation:

find 10% of £59=£5.90

then do £59-£5.90=£53.10

2.8 in between 3 and 4. I need the answer quick please

Answers

Answer:

  no

Step-by-step explanation:

2.8 is between 2 and 3.

Answer: False

2 is actually between 2 and 3.

It is near 3, only 2 steps away on a number line.

The answer is false.

Hope this helps!

In scientific notation

Answers

[tex](3.9 \times {10}^{ - 3}) + 0.0026 = [/tex]

[tex](39 \times {10}^{ - 4}) + (26 \times {10}^{ - 4}) = [/tex]

[tex]39 \times {10}^{ - 4} + 26 \times {10}^{ - 4} = [/tex]

[tex]Factoring \: {10}^{ - 4} [/tex]

[tex] {10}^{ - 4} \times (39 + 26) = [/tex]

[tex]65 \times {10}^{ - 4} = 6.5 \times {10}^{ - 3} [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

graph a line that contains a point (-6,1) and has a slope of 5

Answers

The answer will be
y=5x + b
y=5x + 31
Step-by-step explanation:
Well you can get the answer by putting -6 in the x spot and 1 in the y spot if that make sense

Evaluate the square root of 677.

Answers

Answer:

26.019

Step-by-step explanation:

Answer:

26.01

Step-by-step explanation:

Tara has been saving quarters for the past few months. If her piggy bank contains 100 quarters in addition to the $4.83 her mother gives her, how much money does she have?

Answers

Answer:

100 quarters is equal to $25.00

$25.00 plus $4.83 equals $29.38

Answer:

$29.83

Step-by-step explanation:

100 / 4 = 25

25 + 4.83 = 29.83

The value of -4 - x is positive. What must be true about x ?
NEED HELP NOW!!!!!

Answers

Answer:

x is bigger than or equal to 5.

X would have to be negative. It’s gotta be negative because the initial -4 would make any positive answer just simply negative. A negative minus a positive is negative. But if you need a negative minus a negative, the second term turns positive.

Taking all this into account, we know the answer has to be negative. Would -4 work? No because it would equal 0. So this means x is greater than it equal to -5.

x > -4

Someone help it’s due in some time???????

Answers

The scale of dilation is the number that you multiply one side of the original triangle to get its corresponding side on the new triangle. In this case, it can be seen that AB corresponds to A'B', and so you divide A'B' by AB (6 divided by 4) to find that the scale factor is 6/4, or 3/2. If you do this with any of the other sides you will get the same answer.

Answer:

If you do this with any of the other sides you will get the same answer.

Step-by-step explanation:

6/4

A'B' by AB

6/4 or 3/2.

Scale factor

9x - 4y
if x = -7 and y= -6

Answers

Answer:

-39

Step-by-step explanation:

Plug in -7 for x and -6 for y into given equation and evaluate.

Write an equation of the line that passes through the points (-6, -8) and (2, -8).
y= Blank

Answers

Answer:

y=mx

Step-by-step explanation:

i learn this back in 8 and 9 grade trust me also can u put me Brainliest

if am right

what do you think this is it's all good if you don't know

Answers

Answer:

$3.00; $7.29

Step-by-step explanation:

Find what 8% of $37.50 is:

x/37.50 = 8/100

cross multiply

x × 100 = 37.50 × 8

100x = 300

divide both sides by 100

x = 3

$3 is 8% of $37.50

If 8% was added to the bill, then add $3 to $37.50

3.00 + 37.50 = 40.50

Now find what 18% of 40.50 is

x/40.50 = 18/100

cross multiply

x × 100 = 40.50 × 18

100x = 729

divide both sides by 100

x = 7.29

$7.29 is 18% of the bill after sales tax

They tipped $7.29

“Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or a decrease.”
30 inches to 24 inches..
PLZ EXPLAIN !! :)

Answers

Answer:

20% decrease

Step-by-step explanation:

step one- subtract

30-24=6

step 2 is divide

amount of change from step one÷beginning val

6/30=.2

convert to %

.2=20%

it is a decrease as the value 30 went down to 24

Solve: A = LW/2 for L

Answers

Answer:

I think L = W/2A

Step-by-step explanation:

Answer:

A: [tex]L=\frac{2A}{W}[/tex]

Step-by-step explanation:

[tex]A=\frac{LW}{2}[/tex]

[tex]\frac{LW}{2}=A[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:}2[/tex]

[tex]\frac{2LW}{2}=2A[/tex]

[tex]LW=2A[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}W;\quad \:W\ne \:0[/tex]

[tex]\frac{LW}{W}=\frac{2A}{W};\quad \:W\ne \:0[/tex]

[tex]Simplify[/tex]

[tex]L=\frac{2A}{W};\quad \:W\ne \:0[/tex]

Aggie is an australian exchange sudent in china, and she currenly has 14,000 yuan in her bank account. If the exchange rate changes from 1 australian dollar to 6.21 yuan to 1 australian dollar 6.37 chinese yuan, what happens to the value in australian dollars of the money in aggies bank account

Answers

Step-by-step explanation:

Amount in Aggie bank account = 14,000 yuan

Initial exchange rate:

1 Australian dollar = 6.21 yuan

Initial amount in Australian dollars will be;

x aus dollar = 14,000 yuan

cross multiply

6.21x = 14,000

x = 14,000/6.21

x =  2,254.428 australian dollars

If the exchange rate increases to 6.37 Chinese yuan, her new balance in Australian dollars will be y;

1 Australian dollar = 6.37 yuan

y Australian dollar = 14,000 yuan

cross multiply

6.37y = 14,000

x = 14,000/6.37

y = 2,197.80 Australian dollars

The change in her account balance due to increase in exchange rate is y-x

y-x = 2,197.80 - 2,254.428

y-x = -56.626 aus dollars

This negative values shows a decrease in her account balance by 56.626 aus dollars due to increase in the exchange rate.

Someone help it’s due in some time

Answers

Answer:

A

Step-by-step explanation:

Answer:

3/2

Step-by-step explanation:

Divide second triangle measurements by first to see what was used to multiply

6/4 = 3/2

7.5/5 = 3/2

12/8 = 3/2

traslate 2 units right and 5 untis up

Answers

Answer:

The slope would be positive 5/2

Step-by-step explanation:

When finding slope you do rise over run. Or rise/run.

This is rise |

This is run __

So going up or down is a rise.

And going left or right is a run.

Did this help??

How do you write 2.375 x 10^-7 in standard form? (10 to the power of -7) PLEASE HELP!

Answers

0000002375 is the answer

1. Sketch a graph of f(x) = (x - 2)(x + 4). Find the y-intercept, x-intercept(s), and the vertex of the graph.​

Answers

Answer:

y=x2+2x−8

this is all I got sorry

idk what to do helppp?​

Answers

Answer:

(1,-8), (-6,-4), (3,7), (-6,1)

Step-by-step explanation:

In a function the x values cannot repeat. Look at each answer choice and see if an x repeats:

The first choice (top left) has the x value, -6, repeating. It cannot be a function.

The second choice (top right) does not have an x value repeat. This makes it a function!

The third choice, (bottom left) does not have an x value repeat. This makes it a function!

The fourth choice, (bottom right) does not have an x value repeat. This makes it a function!

A type of fish for your aquarium costs $4 each. You can spend at most $36. How many of these fish
can you buy?

Answers

Answer:

9 fish

Step-by-step explanation:

You can buy 9 fish to achieve a total amount of $36 .

solve the equation
-61 = d + (-18)
give an explanation

Answers

Answer:

The answer is -43

Step-by-step explanation:

It is -61=d-18 (the negative and the positive create a negative)

you add 18 on both sides and you get

-43=d

For |2x + 1|, the expressions 2x + 1 and –2x – 1 are both zero when _____

Answers

Answer:

My grade hasn't even went over this yet,I-

qwq

i feel like i'm du'mb tbh

The height of a stack of boxes varies directly with the number of boxes. A stack of 12 boxes is 15 feet high. How tall is a stack of 16 boxes.​

Answers

Answer:

20 boxes

Step-by-step explanation:

12 boxes is 15 feet so 4 boxes is 5 feet

Help help help ASAP I need help

Answers

Answer:

20

Step-by-step explanation:

Plug in 3 everywhere there is a y and solve.

(3)^2+2(3)+5

9+6+5

20

What is required of a proportional relationship that is not required of a general line relationship?

Answers

Answer:

Step-by-step explanation:

Pertains to y-intercept is then 0.

It introduces the relationship between two variables and is called correlation. Proportionality or variation is state of relationship or correlation between two variables It has two types: direct variation or proportion which states both variables are positively correlation. It is when both the variables increase or decrease together. On the contrary, indirect variation or proportion indicates negative relationship or correlation. Elaborately, the opposite of what happens to direct variation. One increases with the other variables, you got it, decreases. This correlations are important to consider because you can determine and identify how two variables relates with one another. Notice x = y (direct), y=1/x (indirect)

Can someone help with this

Answers

Answer:

Y=3x+3

Step-by-step explanation:

The y-intercept is the point o the y axis and the slope is rise over run and it has a positive slope

Kayla pays $13.95 for a haircut. She wants to leave a 15% tip. What is the total amount she will spend?

Answers

Answer:

16.0425

Step-by-step

%15 tips= 2.0925


I really need help with the last one if you could help it would be awesome! Tysm.

Answers

it’s the second one..................

The world’s two highest dams are both in Tajikistan. The Rogun dam is
35 meters taller than the Nurek dam. Together they are 635 meters tall. Find the
height of the Nurek dam.

Answers

Answer:

300 meters

Step-by-step explanation:

635-35

=600

600/2

300

In destroit at 10 am,the temperature was -6 degrees.By 2 pm,it had increased 20 degrees.what was the temperature at 11 am? (hint:draw a number line).
A)14 degrees.
B)-26 degrees.
C)-14 degrees.
D)26 degrees.​

Answers

Answer:

A

Step-by-step explanation:

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