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4 years ago

Dolores bought 15 party hats priced at 0.75 each and 15 noisemakers priced at 1.25 each how much did Dolores spend in all

Mathematics

1 answer:

gregori [183]4 years ago

6 0

Answer:30

.25 × 15 = 11.25

1.25 × 15 = 18.75

11.25 + 18.75 = 30

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One minute after take off, an airplane altitude was 4,000 feet. Three minutes later , it was 20,000 feet what was the planes ave

Temka [501]

Answer:

The average altitude change of plane with time is 8,000 feet per min .

Step-by-step explanation:

Given as :

The initial height of plane after 1 min take off = 4,000 feet

The final height of plane after 3 min later = 20,000 feet

Let The rate of change of altitude in feet per min = s feet per min

Now, According to question

The change in altitude = final altitude - initial altitude

Or, D = 20,000 feet - 4,000 feet

I.e Distance change = 16,000 feet

The change in time = final time - initial time

Or T = 3 min - 1 min

I.e Time change = 2 min

Speed = $\dfrac{\textrm Distance}{\textrm Time}$

So, s = $\frac{16,000}{2}$ feet per min

∴ s = 8,000 feet per min

So, Rate of change of altitude with respect to time = s = 8,000 feet per min

Hence The average altitude change of plane with time is 8,000 feet per min . Answer

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Scilla [17]

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Any base to a zero exponet will yield a value of one.

brilliants [131]

False. It will yield a value of zero.

Hope this helps :)

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photoshop1234 [79]

Step-by-step explanation:

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