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UNO [17]
4 years ago
11

14 subtracted from 5 times a number is 6

Mathematics
2 answers:
DerKrebs [107]4 years ago
6 0
(5*x) -14  = 6
5x = 6 +  14
5x = 20
x =  20/5 = 4
kkurt [141]4 years ago
4 0
It's 5x - 14 = 6.

let x be the number.

Since 14 is subtracted from 5 times a number. It is not automatically 14 - 5. you have to consider that 14 is actually deducted from the product of 5 and a number.

5x - 14 = 6
5x = 6 + 14
5x = 20
5x/5 = 20/5
x = 4

To check:
5x - 14 = 6
5(4) - 14 = 6
20 - 14 = 6
6 = 6

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When Emily was born, she weighed 8.2 pounds. Two months later she weighed 10.15 pounds. How much weight did Emily gain in two mo
stiv31 [10]
Hey there! Hello!

The easiest way to solve this problem is by subtracting one value from the other. In order to find how much weight Emily gained in two months, we need to find the difference between her initial weight and how much she weighed at the end of two months:

10.15-8.20=1.95

You can see that I added a zero onto the end of the 8.2. This just evens out the amount of numbers and makes the problem easier to visualize while keeping the amount the same.

From the result of the problem, Emily gained 1.95 pounds in two months. 

I hope this helped you out! Feel free to ask me any additional questions if you have any. :-)
8 0
4 years ago
Read 2 more answers
Will give brainliest to the one who gets it right and helps the most!
VARVARA [1.3K]

4. b) 30

5. c) y=2/3x+9

6. y=2x-5

7 0
3 years ago
The flow rate for one pipe is 2 times that of another pipe. A swimming pool can be filled in 10 hours using both pipes. Find the
sweet [91]

Answer:

Pipe 1 twice as fast as pipe 2.

(Pipe 1 time * Pipe 2 time) / (Pipe 1 time + Pipe 2 time)  = combined time

(x * (x/2)) / (x + x/2) = 10

(x^2/2) / 1.5 x = 10

x^2 / 2 = 15 x

x^2 /2 - 15 x = 0

x = 30 (slow pipe)

x/2 = 15 (fast pipe)

So it would take 30 hours using the slow pipe only.

Step-by-step explanation:

4 0
3 years ago
Which line shows the first error in the solution?
Arlecino [84]
Error
<span>6 x = - 2 (5)
should be

</span><span>2 x = - 18 (5)

answer
</span><span>D. 
Line 5</span>
3 0
3 years ago
V2=u2+2as v 2 = u 2 + 2 a s Where v v is the final velocity (in m/s), u u is the initial velocity (in m/s), a a is the accelerat
allsm [11]

Answer:

<em>Final velocity, v = 21.75 m/s</em>

Step-by-step explanation:

Given that the relation between final velocity, initial velocity, acceleration and distance traveled is expressed as:

v^2=u^2+2as

Also, given that:

Initial velocity, u = 9 m/s

Acceleration, a = 7 m/s^2

Distance, s = 28 m

To find:

Final velocity, v = ?

Solution:

The given relation between v, u, a and s is:

v^2=u^2+2as

We have the values of initial velocity, acceleration and distance traveled in the question statement. We just need to put all these values to find the value of final velocity.

Let us put all the values in the given equation and try to find final velocity, v:

v^2=9^2+2\times 7 \times 28\\\Rightarrow v^2=81+14 \times 28\\\Rightarrow v^2=81+392\\\Rightarrow v^2=473\\\Rightarrow v=\sqrt{473}\\\Rightarrow v=21.75\ m/s

So, the answer is:

<em>final velocity, v = 21.75 m/s</em>

5 0
3 years ago
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