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3 years ago

8

Select each expression that is equivalent to 3n+6 select all that apply. Explan.

1 answer:

arsen [322]3 years ago

5 0

A, C. A is obviously correct because it’s the e same thing and C you combine like terms (2n+n=3n,2+4=6,=3n+6) it’s not B because it’s not 18, it’s not D because you’d get 3n+18 and it’s not E because you’d get 3n+12, meaning the only correct answers are A and C

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Help with this math homework

fomenos

+6 ; 45,51
+ evens; 40,52
X -2; -64, 128
+ reducing squares 63+1/4, 63 +13/36

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3 years ago

What is the percent of the discount?

Setler79 [48]

The full price is $82, (100%), the discounted price is $65.60, (?%)

So lets see something:

$82 ------------- 100%

$65.60 --------------- x%

Multiply in cross

82.x = 65,60 . 100

82x = 6560

Divide both sides by 82

82x/82 = 6560/82

x = 80

So the discounted price is equal to 80% of the initial price

100% - 80% = 20% so the discount is 20%

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3 years ago

What are the slopes of line A and line B? Look at the picture

Aloiza [94]

we can mark points on the graph shown , check the image I have shared with this for the points .

Formula for slope = $\frac{Y2-Y1}{X2-X1}$

So for Line A points are (1,3) and (0,-1)

So using t he formula slope is = $\frac{-1-3}{0-1}$

slope of line A =4

For Line B the points are (0,4) and (3,-5)

So using t he formula slope is = $\frac{-5-4}{3-0}$

slope of line B = -3

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4 years ago

What is the total area, in square inches, of the shaded sections of the trapezoid below? 5.5 in 5.5 in 6.4 in 5.2 in

Anni [7]

Answer:

Step-by-step explanation:

A = ½(5.5)(6.4) + ½(5.5)(5.2)

A = ½(5.5)(6.4 + 5.2)

A = ½(5.5)(11.6)

A = 31.9 in²

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3 years ago

Use the Distributive Property to simplify

Anon25 [30]

well what i got was:

the exact form: 233/28

decimal form: 7.96428571...

mixed number form: 7 27/28

not sure if this is right at all but i hope it helps at least a little

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3 years ago

Read 2 more answers