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3 years ago

if You flip an coin 200 times about how many times would you expect the coin to labd on tails what is the probality

Mathematics

1 answer:

inysia [295]3 years ago

4 0

Answer:

100;200

There are 200 total flips and to find probability we would have to divide it by two. Doing so, should give you something like this 100;200.

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Find the value of x 7x+2=16<br>pls explain

miskamm [114]

Answer:

Step-by-step explanation:

Given

7x + 2 = 16

Subtracting 2 from both sides

7x + 2 - 2 = 16 - 2

7x = 14

Dividing both sides by 7

7x / 7 = 14 /7

x = 2

Hope it will help :)

6 0

3 years ago

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zubka84 [21]

All u do is add up until u get ur answer

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3 years ago

Plz help no one would help me with this i beg of u

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Answer:

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4 years ago

Calvin is painting an area that is 115 square feet. He is able to paint 2.5 square feet every 2 minutes. At this rate , how long

Verdich [7]

Answer:

Calvin will paint the entire area in 92 minutes or 1 hour 32 minutes.

Step-by-step explanation:

First of all we know that the total surface are that Calvin is painting is 115 square feet.

The rate at which Calvin is painting refers to the surface area he covers every 2 minutes. This is 2.5 square feet every 2 minutes.

we can set up a relation to solve this problem

If Calvin paints $2.5 ft^{2}$ in 2 minutes

He will paint $115 ft^{2}$ in $x$ minutes

By cross multiplying, we have $x= \frac{2 \times 115}{2.5}=92 minutes$

Hence Calvin will paint the entire area in 92 minutes or 1 hour 32 minutes.

3 0

3 years ago

How to simplify this maths problem

Free_Kalibri [48]

-20-(-5)(-2^2)
-20-(-5)(-4)
-20-(20)
-20-20
-40

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3 years ago