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3 years ago

What expression can be used for estimating 868 divided by 28

2 answers:

6 0

868 is about 870, and 28 is about 30, so your expression would be 870 divided by 30 which would be 29 and the actual answer is 31, so your estimate would be close to your actual answer.

DochEvi [55]3 years ago

5 0

You could do 870/30=29.
<span>Or you could do 868/28=31 </span>and then round it<span> but it looks like it doesn't need rounding.</span>

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FP!!!!!!!!!!!!!!!!!!!!<br><br> (10 x 6 ) + 20

Advocard [28]

Answer:

Step-by-step explanation:

Following the order of operations (PEMDAS), you would first multiply 10 by 6 to get 60. You would then add 20 to the product to get your answer.

(10 · 6) + 20

60 + 20 = 80

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3 years ago

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In basketball, hang time is the time that both of your feet are off the ground during a jump. The equation for hang time is t =

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Considering the hang time equation, it is found that Player 1 jumped 0.68 feet higher than Player 2.

<h3>What is the hang time equation?</h3>

The hang-time of the ball for a player of jump h is given by:

$t = 2\left(\frac{2h}{32}\right)^{\frac{1}{2}}$

The expression can be simplified as:

$t = 2\sqrt{\frac{h}{16}}$

For a player that has a hang time of 0.9s, the jump is found as follows:

$0.9 = 2\sqrt{\frac{h}{16}}$

$\sqrt{\frac{h}{16}} = \frac{0.9}{2}$

$(\sqrt{\frac{h}{16}})^2 = \left(\frac{0.9}{2}\right)^2$

$h = 16\left(\frac{0.9}{2}\right)^2$

h = 3.24 feet.

For a player that has a hang time of 0.8s, the jump is found as follows:

$0.8 = 2\sqrt{\frac{h}{16}}$

$\sqrt{\frac{h}{16}} = \frac{0.8}{2}$

$(\sqrt{\frac{h}{16}})^2 = \left(\frac{0.8}{2}\right)^2$

$h = 16\left(\frac{0.8}{2}\right)^2$

h = 2.56 feet.

The difference is given by:

3.24 - 2.56 = 0.68 feet.

More can be learned about equations at brainly.com/question/25537936

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2 years ago

devon drives 3/4 the distance to his house in 2 1/2 hours at this speed how long will the entire trip take(can i divide)

Rama09 [41]

Answer: Devon will complete the entire trip in 3 hours 20 minutes

Explanation:

Since we have given that

Devon drives $\frac{3}{4}$ the distance to his house in $2\frac{1}{2}$ hours,

Let the distance be x

According to question, we get

$Speed=\frac{Distance}{Time}\\\\Speed=\frac{\frac{3x}{4}}{\frac{5}{2}}\\\\Speed=\frac{6x}{20}=\frac{3x}{10}$

Now, if he want to travel the entire trip ,

Time taken by Devon is given by

$Time=\frac{Distance}{Speed}\\\\Time=\frac{x}{\frac{3x}{10}}\\\\Time=\frac{10}{3}\\\\Time=3\frac{1}{3}\times 60\\\\Time=3\ hours\ 20\ minutes$

Hence, Devon will complete the entire trip in 3 hours 20 minutes.

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4 years ago