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oksian1 [2.3K]
3 years ago
10

Express as a fraction in its lowest form

Mathematics
1 answer:
tankabanditka [31]3 years ago
4 0

Answer:

3 71/99.

Step-by-step explanation:

0.71.. * 100 =  71.71..

0,71.. * 1    =    00.71..      Subtract:

0.71 * 99 =      71

So 3.71..  = 3 71/99.

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Xy = –16. What is the constant of variation for this relationship?
olganol [36]
Direct variation is y=kx and inverse variation is y=k/x, in this case:

y=-16/x

So this is an inverse variation with a constant of -16
6 0
3 years ago
The art teacher has 30 boxes of crayons with 16 cans in each box she gives the students 10 of the boxes to use explain how to fi
Mamont248 [21]
I'm going to assume you meant crayon instead of can:

First step is to find how many boxes she/he has left.

30 - 10 = 20 

So the teacher has 20 boxes left;

Now, knowing that each box has 16 crayons, then we simply multiply the 20 by 16 to find the total number of crayons left over:

20 x 16 = 320 

So the art teacher has 320 crayons left over.

Hope this helps!

3 0
3 years ago
On a number line whats the distance between -8 and -2 ? ​
Stels [109]

Answer:

as in the number line negative digits occur on the left side if we subtract -2 from -8 we will get our answer that is -6

Step-by-step explanation:

-8-(-2)

-8+2

-6

8 0
3 years ago
How do you write three hundred eighteen million, nine hundred sixty thousand in exspanded form
AlladinOne [14]

It would be 318,960,000

8 0
3 years ago
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(3) Two people are at an elevator. At the same time one person starts to walk away from the elevator at a rate of 2 ft/sec and t
Gekata [30.6K]

Answer:

The rate at which the distance between the two people is changing 15 seconds later is 7.28 ft/sec.

Step-by-step explanation:

Here, we note the following

Let the person walking way fom the elevator be X

Let the other person going up in the elevator be Y

Therefore after 15 seconds, their positions will be;

For X,  2 ft/sec × 15 s = 30 ft away from the elevator

For Y,  7 ft/sec × 15 s = 105 ft up in the elevator

At that instant, the distance between them is given as

d² = x² + y²

= 30² +105² = 11925 ft²

d = √11925 ft²  = 109.202 ft

The rate of change of the distance between the two peopl, X and Y is given as

\frac{dd^2}{dt} = \frac{dx^2}{dt} + \frac{dy^2}{dt}

Therefore,  2d\frac{dd}{dt} = 2x\frac{dx}{dt} + 2y\frac{dy}{dt} or d\frac{dd}{dt} = x\frac{dx}{dt} + y\frac{dy}{dt}

Since \frac{dx}{dt} is given as 2 ft/sec and \frac{dy}{dt} = 7 ft/sec

Then  d\frac{dd}{dt} = 30 \times 2 + 105 \times 7 = 795\\

\frac{dd}{dt} = \frac{795}{109.202 } =7.28 ft/sec

8 0
3 years ago
Read 2 more answers
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