3 years ago

If it takes 1/2 cup of flour to make 1/5 of a cake, how many cups of flour are needed to make a whole cake?

Mathematics

2 answers:

olga55 [171]3 years ago

5 0

Answer:

Step-by-step explanation:

one whole cake is 5/5

to get 5/5 from 1/5 we multiply by 5

so to find the amount of flour needed, we also multiply by 5

5(1/2)

5/2 cups of flour required for one cake

Luba_88 [7]3 years ago

4 0

Answer: 2 1/2

Step-by-step explanation:

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3 years ago

What is the GCF of 24,48m

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g A 5 foot tall man walks at 10 ft/s toward a street light that is 20 ft above the ground. What is the rate of change of the len

vredina [299]

Answer:

$-\frac{10}{3}ft/s$

Step-by-step explanation:

We are given that

Height of man=5 foot

$\frac{dy}{dt}=-10ft/s$

Height of street light=20ft

We have to find the rate of change of the length of his shadow when he is 25 ft form the street light.

ABE and CDE are similar triangle because all right triangles are similar.

$\frac{20}{5}=\frac{x+y}{x}$

$4=\frac{x+y}{x}$

$4x=x+y$

$4x-x=y$

$3x=y$

$3\frac{dx}{dt}=\frac{dy}{dt}$

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Hence, the rate of change of the length of his shadow when he is 25 ft from the street light= $-\frac{10}{3}ft/s$

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3 years ago

How long does it take for a car traveling at a speed of 50.0 miles per hour to travel 300 feet?

beks73 [17]

We know, Time = distance / speed
t = 0.0568182 / 50 [ 300 Feet = 0.0568182 miles ]
t = 0.001136 * 3600 s
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In short, Your Answer would be 4.09 Seconds

Hope this helps!

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