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3 years ago

Whats the reciprocal to 2 3/8?

Mathematics

2 answers:

almond37 [142]3 years ago

5 0

Answer:

8/19

Step-by-step explanation:

Given x, the reciprocal is 1/x.

Given 2 3/8, we first rewrite this as an improper fraction: 19/8, and then invert this result: 8/19

ICE Princess25 [194]3 years ago

4 0

Answer:

8/19 would be the answer to this question.

I hope this helped you! :)

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Constructive proof: There exists an integer x such that: (x^3)/5 > x^2

Lana71 [14]

Answer:

$x>5$

Step-by-step explanation:

We are asked to find an integer x such that $\frac{x^3}{5}>x^2$ .

First of all, we will multiply both sides of inequality by 5.

$\frac{x^3}{5}>x^2$

$\frac{x^3}{5}*5>5*x^2$

$x^3>5x^2$

Divide both sides by $x^2$ :

$\frac{x^3}{x^2}>\frac{5x^2}{x^2}$

$x>5$

Therefore, the value of x is any number greater than 5.

3 0

3 years ago

HELP!!! PLEASE TELL ME WHICH GRAPH GOES WHERE!!! DON'T IGNORE PLEASE!!!

Aleksandr-060686 [28]

So y=mx+b is still prevalent here even if it's an inequality. Meaning your slope AND y-intercept can help you. Even if it's in ax+by=c you can easily get the y alone into slope-intercept.

y<_3x+5 for example. For one, it is y is less than or equal to 3x+5. So the line shouldn't be dotted. So that leaves us with the two far-right graphs to look at. 5 is our y-intercept in the equation. So look at our graph and see which one has the line passing through 5. They both do. Okay, well we can still use our sign, it shows that y is LESS than 3x+5. So the shaded blue part should be on the right. If it was the other way around it would be the left. So our graph should be the far right for this equation.

Hope this helps... I know it's kind of messy. If you need any more help let me know. But I hope I outlined what to look for.

4 0

3 years ago

Help me rn pleasee !!

ankoles [38]

Answer:

There are two solutions for x;

x = 0

x = $-\frac{3}{2}$

Step-by-step explanation:

7 0

3 years ago

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A 20 000 L tank drains at a constant rate. It takes 100 min to empty the tank. When is there 6 000 L of liquid left in the tank?

statuscvo [17]

Answer: 70 minutes

===================================================

Explanation:

x = time in minutes

y = amount of water left in thousands (eg: y = 4 means there's 4000 liters of water left)

The point (0,20) means that at the starting point 0 minutes, the tank has 20 thousand liters of water in it

The point (100,0) indicates that after 100 minutes, there is no water left

Find the slope of the line through those points (see the attached figure below). This slope is m = -1/5 = -0.2

The y intercept is b = 20 because the initial amount of water in the tank is 20 thousand liters.

Therefore, the equation of the line goes from y = mx+b to y = -0.2x+20

The last step is to plug in y = 6 and solve for x

y = -0.2x+20

6 = -0.2x+20 ...... replace y with 6

6-20 = -0.2x+20-20 .... subtract 20 from both sides

-14 = -0.2x

-0.2x = -14

-0.2x/(-0.2) = -14/(-0.2) ..... divide both sides by -0.2

x = 70

It takes 70 minutes to have 6000 liters left in the tank.

7 0

3 years ago

What improper fraction is equal to 8 1/6?

Dahasolnce [82]

Answer:

8 1/6 written as an improper factrion is 49/6

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers