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aniked [119]
3 years ago
15

How to solve this : 2/3(x-4)=x+1

Mathematics
1 answer:
rjkz [21]3 years ago
5 0

Step-by-step explanation:2/3 ( x-4) =x+13( [2/3] [x-4] )= x+1 ...........multiply both side by 32(x-4)=x+1 2x-8=x+1 2x-x=1+8X=9 the value of x is 9.

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70% of 90 please give right answerrr
Natali5045456 [20]

Answer: 63

Step-by-step explanation: To find 70% of 90, first write 70% as a decimal by moving the decimal point two places to the right to get .70.

Next, the word "of" means multiply, so we have (.70)(90) which is 63.

So 70% of 90 is 63.

8 0
3 years ago
Simplify the expressions <br> -8(5r+6)+9(6r+3)
nirvana33 [79]
<span>-8(5r+6)+9(6r+3)
= -40r - 48 + 54r + 27
= 14r - 21</span>
7 0
3 years ago
A cylindrical tank with radius 3 m is being filled with water at a rate of 4 m3/min. How fast is the height of the water increas
Fittoniya [83]

Height of the water increasing is at rate of  #(dh)/(dt)=3/(25 pi)m/(min)#

<h3>How to solve?</h3>

With related rates, we need a function to relate the 2 variables, in this case it is clearly volume and height. The formula is:

#V=pi r^2 h#

There is radius in the formula, but in this problem, radius is constant so it is not a variable. We can substitute the value in:

#V=pi (5m)^2 h#

Since the rate in this problem is time related, we need to implicitly differentiate wrt (with respect to) time:

#(dV)/(dt)=(25 m^2) pi (dh)/(dt)#

In the problem, we are given #3(m^3)/min# which is #(dV)/(dt)#.

So we need to substitute this in:

#(dh)/(dt)=(3m^3)/(min (25m^2) pi)=3/(25 pi)m/(min)#

Hence,  Height of the water increasing is at rate of  #(dh)/(dt)=3/(25 pi)m/(min)#

<h3>Formula used: </h3>

#V=pi r^2 h#

To Learn more visit:

brainly.com/question/4313883

#SPJ4

4 0
2 years ago
Read 2 more answers
What is the result when 2/5x + 1 1/4 is subtracted 2/38x - 4 1/9? (NEED ASAP)
Katyanochek1 [597]

Answer:

33 x/ 95  −  103/ 36

Step-by-step explanation: i had too many steps and i cant type them all out.

This answer is only correct if you are talking about subtracting.

7 0
3 years ago
Blank percent of 50 shirts
Dmitrij [34]
The answer is 10 because 5 10 15 20 25 30 35 40 45 50
8 0
3 years ago
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