Which two expressions are equivalent?

Mathematics

1 answer:

Licemer1 [7]3 years ago

7 0

Answer:

option 3

Step-by-step explanation:

12 - (y*2) = 12 - (2*y) Commutative property

2*y = y*2

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What is the Surface area for a rectangular prism that has the measurements of 2, 12, and 6?

Bond [772]

Answer:

216

Step-by-step explanation:

A=2(wl+hl+hw)=2·(12·2+6·2+6·12)=216

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3 years ago

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Terry sees this offer. 35% off refurbished phone, now only £78. What was the orginal price?

KengaRu [80]

35% off means that now it costs 100%-35%=65% of the original price

£78 ---- 65%
x------100%

x=78*100/65=120£

or
part/whole=0.65
78/whole=0.65
whole =78/0.65 =120 £

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3 years ago

John works 6 hours a day and earns $150.00. Peter works 8 hours a day and earns $160.00. Who earns more money per hour?(think un

Zanzabum

Step-by-step explanation:

John

1hour=x

6x=150

X=150÷6=25

John earns 25 dollars per hour

Peter

1hour=x

8x=160

X=160÷8=20

Peter earns less than John

6 0

3 years ago

Find the area of this figure (50 points)

Softa [21]

Answer:

$A_{total} = 14\ in^2$

Step-by-step explanation:

Step 1: Determine the area of the left rectangle

We can tell that the total shape seems like two rectangles glued together. We can separate the left rectangle and determine the area of it and then determine the area of the right rectangle and combine them. Lets first solve the left rectangle.

$A = l * w$