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3 years ago

Will multiplying 3.14 by a fraction result in a rational answer

Mathematics

1 answer:

lara31 [8.8K]3 years ago

5 0

Answer:

Yes. When you multiply a fraction by 3.14, the results will be a rational answer.

Step-by-step explanation:

Let's look at some examples. The fractions we are going to be using are $\frac{1}{2}$ , $\frac{3}{4}$ , and $\frac{7}{8}$

We are going to multiply these fractions by 3.14 and prove that when you multiply a fraction by 3.14, your results will be rational.

Ex. 1

$\frac{1}{2}*3.14 = 1.57$

Ex. 2

$\frac{3}{4}*3.14=2.355$

Ex. 3

$\frac{7}{8}*3.14=2.7475$

So, based on these fractions, then we can conclude that when you multiply a fraction by 3.14, then your answer will be rational.

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Jeanie sells M&Ms out of her giant bag at 4 for 5 cents. The machine at the store sells you 9 for 25 cents. Which is the bet

natima [27]

If we take 4/5=80 cent each and when we take 9/25=36 cents a piece so the store is a better deal

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3 years ago

Given p(x) = x+7/3 if p(x) = 13, find x.

Shtirlitz [24]

Answer:

x = $\frac{32}{3}$

Step-by-step explanation:

We know that p(x) = 13. Thus, substitute 13 for the "p(x)" in the equation. Then, isolate x by subtracting both sides by $\frac{7}{3}$ :

$p(x) = x + \frac{7}{3}\\13 = x + \frac{7}{3} \\13 - \frac{7}{3} = x \\\frac{39}{3}- \frac{7}{3} = x \\\frac{32}{3} = x$

Thus, x = $\frac{32}{3}$ .

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2 years ago

2log2 8 – 3 logs 25 + 2x = log 10,000 may you show the steps please

anzhelika [568]

Answer: x=2 - 1/2 x ㏒(16/2953125)

Step-by-step explanation:

log (28^2) + log(525^-3) + 2x=log(10^4)
log(28^2 x 1/523^3) + 2x=4
log(28^2/525^3) + 2x=4
log (112/75 x 75 x 525) + 2x=4
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3 years ago

Please help it's due today!!!!!!

BlackZzzverrR [31]

Answer:

See Below

Step-by-step explanation:

We are given 3 equations.

3x + 8

5x - 20

and

5x + 4y

First lets solve for x using the first two

3x + 8 = 5x -20

Move the variables to one side

3x + 8 = 5x -20

-3x -3x

8 = 2x -20

+20 +20

28 =2x

28/2 =2x /2

14 = x

Now we have x = 14

Lets plug this into the second equation to solve for the angle

3(14) + 8

42 + 8 = 50

5(14) - 20

70 - 20 =50

Now, lets plug the x and the angle into the third equation to find y

5 (14) +4y = 50

70 + 4y = 50

-70 -70

4y = -20

4y/4 = -20/4

y = -5

So now we have:

x = 14

y = -5

and the angle = 50

Hope this helps!

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3 years ago

Out of 1200 students of a school only 85% passed. how many students failed?

DerKrebs [107]

Answer:15

Step-by-step explanation:

If 85% pass then 15% failed and 15% of 1,200 is 180 so 180 people failed.

7 0

3 years ago