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mylen [45]
3 years ago
7

Simplify to create an equivalent expression. -r+8(-5r-2)

Mathematics
2 answers:
Anarel [89]3 years ago
5 0

Answer:

-41r-16

Step-by-step explanation:

Distribute the 8  to each term inside the parentheses:

−r+8(−5r−2)    =−r−40r−16

Combine the r-terms:

−r−40r−16     =−41r−16

The simplified expression is:

−41r−16  

Maru [420]3 years ago
3 0

Answer:

− 41r - 16


I don't know how to explain how i just understand the question and know the answer


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An apartment cost $870 per month to rent. The owner raises the price by 20% and then gives a discount of 8% to returners who sig
Aloiza [94]

Answer:

$34.8

Step-by-step explanation:

Given data

Cost of apartment= $870 per month

increase= 20%

Discount= 8%

Let us find the amount of increase

=20/100*870

=0.2*870

=$174

New cost = 870+174

=$1044

New cost of apartment for 18 month

=1044*18

=$18792

He gave them 8% discount

=8/100*18792

=0.8*18792

=$15033.6

Hence the monthly fee will be

=15033.6/18

=$835.2

Therefore the difference in price is

=870-835.2

=$34.8

5 0
3 years ago
Fay has a lemonade stand. She spends £35 on ingredients. She sells each glass of lemonade for £2.10. If she sells 50 glasses of
Zarrin [17]

Answer:

£70.00

Step-by-step explanation:

You basically want to find what she spent in total, then subtract the amount she spent on ingredients.

50 glasses of lemonade at £2.10 each would be £105. (50*2.1)

Subtract the cost of ingredients, which is £35, with the total she made, £105, to get £70 (105-35)

6 0
3 years ago
Below is a pair of vectors. add them and insert your answer here: ab+bc=(-3-1)+(-4 2)=<br>​
jarptica [38.1K]

Answer:

(-7, 1)

Step-by-step explanation:

Add the x and y values separately which is across from your screen to get the function which is (-7, 1).

8 0
2 years ago
Answer my math question I asked so many times I lost most of points help by
alexandr1967 [171]

y-intercept: (0, 1)

Line of symmetry calculation: x = -b/2a = -(-2)/2(2) = 0.5

Line of symmetry: x = 0.5

Open UP or DOWN: Opens UP

Min or Max: Min

Vertex: (0.5, 0.5)

Domain: {x|x ∈ ℝ}

Range: {y|y ≥ 1/2}

6 0
3 years ago
The statue of liberty is 305 feet tall. A nearby building is 4/9 as tall. Find the height of the building.
inysia [295]

Answer:

The nearby building is 135 \dfrac{5}{9} feet tall.

Step-by-step explanation:

The statue of liberty is 305 feet tall.

A nearby building is \dfrac{4}{9} as tall as the statue of liberty.

To find the height of the building, you need to find \dfrac{4}{9} of 305:

\dfrac{4}{9}\cdot 305=\dfrac{1,220}{9}= 135 \dfrac{5}{9}\ feet

Thus, the nearby building is 135 \dfrac{5}{9} feet tall.

5 0
3 years ago
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