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3 years ago

the weight of a nickel is 80% of the weight of a quarter.if a nickel weighs 5grams how much does a quarter weigh?

Mathematics

1 answer:

Rasek [7]3 years ago

8 0

Just divide 100% by 80% and multiply that answer by 5. I'm pretty sure that's how you do it.

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What is the formula for pie

Vlad1618 [11]

Answer:

$\pi \: = \frac{22}{7} \: \: \: \: or \: \: \: \: \: \: 3.14 \\ \\$

3 0

3 years ago

Does anyone know the answer to this ?

klemol [59]

Step-by-step explanation:

The circumference of the clock will be 8.6π because its hand is the radius. In 15 minutes the hand moves a quarter of the circumference which is 2.15π or 6.571.

5 0

3 years ago

An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin

kkurt [141]

Answer:

<em>t = 3 seconds</em>

Step-by-step explanation:

We have the equation, as a function of time, that describes the height of the object that is dropped from the bridge.

The equation is:

$h (t) = 144 - 16t ^ 2$

Where t is the time in seconds and h is the height in feet.

To know how long it takes the object to fall to the ground we do h (t) = 0 and solve for t.

So:

$0 = 144 - 16t ^ 2\\\\16t ^ 2 = 144\\\\t ^ 2 = \frac{144}{16}\\\\t ^ 2 = 9\\\\t_1 = 3\\t_2 = -3$

We take the positive solution.

Therefore the object takes 3 seconds to reach the ground

4 0

3 years ago

Read 2 more answers

Help with this please lol

NeTakaya

Answer:

x = 107

Step-by-step explanation:

44+29+107=180

a triangle equals 180 with all the degrees added together :)

7 0

3 years ago

Please help ill give brain

Rasek [7]

Answer:

23 r1

Step-by-step explanation:

23 R 1

28/653

-56

93 bring down three

=1 which is remainder

28*2=56

28*3=92

6 0

3 years ago