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nadezda [96]
3 years ago
11

Help me with this problem that I'm stuck on!

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0
                              4/(x+1) = 3/x + 1/15
Should we make common denominators with everything, we get
           4*15*x / [15x(x+1)] = 3*15*(x+1)/[15x(x+1)] + x(x+1)/[15x(x+1)]
Multiply both sides of the equation by the denominator to cancel them
                                         60x = 45(x+1) + x(x+1)
                                         60x = 45x + 45 + x^2 + x
                       x^2 - 14x + 45 = 0
                               (x-9)(x-5)  = 0
The answer to this question is that the solutions are x=9 and x=5.
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I NEED HELP PLEASE, THANKS :)
lilavasa [31]

Answer:

C. 193.1 m^2

Step-by-step explanation:

<em><u>The formula for finding the area of a right trapezoid is:</u></em>

A = \frac{1}{2} (b_{1 } +b_{2})h

A = \frac{1}{2} (15.3+19.5)(11.1)

A = 193.1

3 0
3 years ago
3(3−3)=2(+3)−30 how do I do this???? I'm in 10th grade and this confuses me every time.
astra-53 [7]
Well when you simplify it you get this,

0=-24,


Do what’s inside the parentheses first

3-3 is 0, 3•0 is 0

2•positive 3 is 6

6- -30 is -24

So you have 0=-24

Or just -24 :)
4 0
2 years ago
Please help with # 9
Sliva [168]

Answer:Yes it will remain the same

Step-by-step explanation:

because you are adding the same amount to both sides!

6 0
3 years ago
Help pls i really need help
Naddik [55]
<h3>Answer:  33%</h3>

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

Explanation:

1/3 converts to the decimal form 0.333333... where the 3's go on forever

5/3 is a similar story but 5/3 = 1.666666.... where the '6's go on forever

The notation 0.\overline{6} indicates that the 6's go on forever.

So, 0.\overline{6} = 0.666666\ldots

The horizontal bar tells us which digits repeat. As another example, 0.\overline{123} = 0.123123123123\ldots

The three dots just mean "keep this pattern going forever".

----------

Everything mentioned so far has the decimal portions go on forever repeating some pattern over and over.

The only one that doesn't do this is 33% which converts to the decimal form 0.33

The value 0.33 is considered a terminating decimal since "terminate" means "stop". So this is the value that doesn't fit in with the other three items mentioned.

3 0
2 years ago
4. Stella is running in the 90 meter dash at her school track meet. If her speed is
ludmilkaskok [199]
It would take her about 15 seconds
3 0
3 years ago
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