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3 years ago

6

The lunch choices last Friday were mushroom or pepperoni pizza. The cafeteria made 45 mushroom pizzas and 30 pepperoni pizzas. W

hat percentage of the pizzas were mushroom pizzas?

1 answer:

alukav5142 [94]3 years ago

6 0

Answer: 60%

Step-by-step explanation:

45+30=75=100%

75/10=7.5=10%

7.5*6=45=60%

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4 years ago

In triangle xyz, z2 = x2 + y2. triangle xyz has sides x, qy, z opposite to the corresponding vertices x, y, z which equation is

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An airplane is flying 600 mph on a horizontal path that will take it directly over an observer. The airplane remains a constant

dezoksy [38]

<h2>Change of the distance between the observer and the airplane when X = 5 miles is 348.84 mph</h2>

Step-by-step explanation:

We have by Pythagoras theorem

Distance between the observer and the airplane² = Horizontal distance² + Altitude²

d² = h² + a²

Here we have

h = X = 5 miles

a = 7 miles

d² = 5² + 7² = 74

d =8.60 miles

$\frac{dh}{dt}=600mph\\\\\frac{da}{dt}=0$

Differentiating d² = h² + a² with respect to time

$2d\frac{dd}{dt}=2h\frac{dh}{dt}+2a\frac{da}{dt}\\\\8.60\frac{dd}{dt}=5\times 600+7\times 0\\\\\frac{dd}{dt}=348.84mph$

Change of the distance between the observer and the airplane when X = 5 miles is 348.84 mph

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4 years ago

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fenix001 [56]

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