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Nana76 [90]
3 years ago
6

George is reading a book. At the end of 3 hours he has read 90 pages, and at the end of 5

Mathematics
1 answer:
jeka943 years ago
5 0

Answer:

74 pages/hour

Step-by-step explanation:

The average rate of change is the difference in the numbers of pages  divided by the difference in the numbers of hours.

At the end of 3 hours, 90 pages were read.

At he end of 5 hours, 238 pages were read.

Difference in hours: 5 hours - 3 hours = 2 hours.

Difference in pages: 238 pages - 90 pages = 148 pages

The average rate of change is the difference in pages divided by the difference in hours.

average rate of change = (148 pages)/(2 hours) = 74 pages/hour

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2 solutions. This is because the parabola will cross the x axis twice. We know this because -5 means the vertex will be 5 units below the x axis. and the parabola opens upwards because the first coefficient is positive. Hope this helped :)
5 0
3 years ago
allowing 20% discount on the marked price of a watch the value of the watch will be Rs 6328 when a vat 13%is added ,find the fin
Ahat [919]

Step-by-step explanation:

Let the marked price of a watch be =₹x

∴ Discount price = x- 20% of x

= x - 0.2x

=0.8x

Amount of VAT = 13% of 0.8x

0.13 x 0.8x

0.104x

Now,

Selling price = 0.8x + 0.104x

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7 0
3 years ago
Howard is designing a chair swing ride. The swing ropes are 55 meters long, and in full swing they tilt in an angle of 29? . How
Allushta [10]

Answer: 50.85 meters

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

cos 29 = \frac{55}{h}

55 cos 29 = h

48.10 = h

Pole  = h + 2.75

        = 48.10 + 2.75

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3 0
3 years ago
Read 2 more answers
1. If Jeremy found 80% of the collector cards and Tim found 41 of the 45 cards,
baherus [9]

Answer:

Tim has more

Step-by-step explanation:

41/45 when you type it into a calculator is 91% and 91%>80%

6 0
3 years ago
A student has a test grade of 85%. If the student does extra problems and his grade raises by 15% of the test, what would be the
ruslelena [56]
Yes he is receiving a perfect score now
85 +15 = 100 %
7 0
3 years ago
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