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mixas84 [53]
3 years ago
11

If John makes $20 an hour, how long will it take him to make $140?

Mathematics
1 answer:
Len [333]3 years ago
4 0
For 1 hour, money = $20
For $140, it would be: 140/20 = 7 hours.

So, option C is your final answer.

Hope this helps!
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Daniela is a stain glass artist; she created the window below for her living room. What is
OLga [1]
The window has a shape of a semi-circle (half of a circle).

We know the diameter d = 12 ft.

The area of a (complete) circle is given by the formula:
A = π × r²

The radius can be found by halving the diameter:
r = d ÷ 2
  = 12 ÷ 2
  = 6 ft

Therefore the area of the circle will be:
<span>A = π × r²
    = 3.14 × 6</span>²
    = <span>3.14 × 36
    = 113.04 ft²

And the area of the semi-circle:
A = </span><span>113.04 </span>÷ 2
   = 56.52 ft²

Hence, the area of the window will be 56.52 ft².
3 0
3 years ago
Help? :c<br><br>Select whether each equation is an example of the Addition Property of Equality.
Gemiola [76]
Yes
No
Yes
No

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8 0
3 years ago
WHAT ARE THE EXCLUDED VALUES?
hichkok12 [17]
Since the denominator cannot be zero, you can set 4z+1=0 to find the excluded values. 
4z+1=0
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5 0
3 years ago
A right prism has a base that is an equilateral triangle. The height of the prism is equal to the height of the base. If the vol
Romashka [77]

<u>Answer:</u>

Lengths of the sides (there are 3 sides in an equilateral triangle) of the base of prism is <u>5.72cm </u>each.

<u>Step-by-step explanation:</u>

As the base of triangular prism is equilateral:

∴ Area of base = (√ 3 / 4)× (side)²

According to question:

height of prism = height (side) of base

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∴ Volume of prism = Area of base x height

⇒  81 cm³ = (√ 3 / 4)× (side)² × height       ∵ side = height

⇒   81 cm³ = (√ 3 / 4)× (side)³

⇒  81 × (4/√3) cm³ = side³    

⇒  ∛(81 × (4/√3) cm = side

⇒  side = <u>5.72cm</u>

6 0
2 years ago
What is the area of the sector bound by the center of the circle and arc CD in the circle below? Radius is 6 ft and central angl
ArbitrLikvidat [17]

The answer is 9.42 for the ones wondernig what it was! I calculated it and took the exam and it was correct.

8 0
3 years ago
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