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Katena32 [7]
3 years ago
9

Steve reads 20 pages of his graphic novel per hour. If the book has 200 pages and he reads for d hours, which expression shows t

he number of pages he has left to read after reading for d hours?
Mathematics
2 answers:
ryzh [129]3 years ago
4 0
200 - 20d <=== ur expression
Zigmanuir [339]3 years ago
3 0

Answer:

200-20d

Step-by-step explanation:

i did this answer and got it right

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112.

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This section of a concrete skateboard ramp has the shape of a triangular prism. Find the volume of the triangular prism. Find th
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Answer:

The volume of the triangular prism: 59.2 ft^{3}

The value of the concrete used is: 16*4 = $64

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  Please have a look at the attached photo

My answer:

As we know that, the formula to find out the volume of the triangular prism is:

V = \frac{1}{2} a*b*h when h is the height and a&b are the length of the two square edges. So we have:

  • V = \frac{1}{2}*4*4*7.4 = 59.2 ft^{3}

To find the concrete used in the ramp if the cost of concrete is $ 4.00 per cubic foot, we need to know the area of the ramp, which is:

S = 4*4 = 16 ft^{2}

Hence, the value of the concrete used is: 16*4 = $64

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3 years ago
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You are saving to buy a new phone you have $150 in your bank account and can save $55 each week assuming you don’t spend any mon
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Answer:

150+55w

Step-by-step explanation:

150+55w

150 never changes

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0.3×1.2

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−0.36

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