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suter [353]
3 years ago
7

a computer shop charges 20 pesos per hour (or a fraction of an hour) for the first two hours and additional 10 pesos per hour fo

r each succeeding hour. find how much you would pay if you used one of their computers for 40 minutes. show solutions.​
Mathematics
1 answer:
Serhud [2]3 years ago
7 0

Answer:

The equation for the price, as a function of time in hours is:

P(x) = 20*x    for 0 ≤ x ≤ 2

P(x) = 40 + 10*(x - 2)  for  2 ≤ x

Now, we want to evaluate this function in 40 mins.

we know that 1 hour = 60mins.

Then 40 mins = (40/60) hours = 0.67 hours.

Then we input this in our function, and because this is smaller than 2, we use the first piece of our function:

P(0.67) = 20*0.67 = 13.4

So in 40 mins, the charge will be 13.4 pesos.

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Find the m ∠YXZ. Show your Work
Charra [1.4K]

Answer:

∠YXZ = 62°

Step-by-step explanation:

A straight line measures 180 degrees

The angle "8x - 14" PLUS its adjacent angle Z sum up to 180, so we can write:

Z + 8x - 14 = 180

Z = 180 +14 - 8x

Z = 194 - 8x

Sum of 3 angles of a triangle is 180 degrees, thus we can write:

X + Y + Z = 180

3x + 5 + 4x + 194 - 8x = 180

Now, we solve for x:

3x + 5 + 4x + 194 - 8x = 180\\-x+199=180\\x = 199-180\\x=19

The measure of ∠YXZ is "3x + 5", we substitute the value of x and find this angle to be:

3x + 5

3(19) + 5

62

Thus,

∠YXZ = 62°

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sveticcg [70]

Answer:

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hichkok12 [17]

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The answer should have originally been 3(4a-5b+2)

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Step-by-step explanation:

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