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Vladimir [108]
3 years ago
8

Helppp plzzzzzz help me right now plz i need help

Mathematics
1 answer:
Bond [772]3 years ago
5 0

Answer:

the third one is the correct answer

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Help me pls !!!<br><br> answer all pls
polet [3.4K]
1. We assume, that the number 128 is 100% - because it's the output value of the task. 
<span>2. We assume, that x is the value we are looking for. </span>
<span>3. If 128 is 100%, so we can write it down as 128=100%. </span>
<span>4. We know, that x is 51% of the output value, so we can write it down as x=51%. </span>
5. Now we have two simple equations:
1) 128=100%
2) x=51%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
128/x=100%/51%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 51% of 128

128/x=100/51
<span>(128/x)*x=(100/51)*x       - </span>we multiply both sides of the equation by x
<span>128=1.96078431373*x       - </span>we divide both sides of the equation by (1.96078431373) to get x
<span>128/1.96078431373=x </span>
<span>65.28=x </span>
x=65.28

<span>now we have: </span>
<span>51% of 128=65.28</span>
8 0
3 years ago
What does 101=50-h h means the number 49
ICE Princess25 [194]
Let me see if I understand your question:

101=50-h

this would just be an equation with a variable: this variable is "h". Variable is an unknown value, like a name for "something".

so we could say that 101 equals 50 minus "something" and we call this something "h"

this is what 101=50-h "means"

as it happens, we can find out the value of this h:

we can subtract 50 from both sides of the equation:

101-50=50-50-h
51=-h

and multiply by (-1)
-51=h

so our h is equal to -51.

so...  does not actually mean here 49...

let me know if you have further questions!
6 0
3 years ago
Pls help i really did it plssssssssss
Bess [88]

Answer:

D

Step-by-step explanation:

You can combine like terms meaning (8x+14)+ (9x-5) is 17x+9

5 0
2 years ago
Read 2 more answers
A plant mesures 3 yards and 10 inches what is the height of the plant mesured in inches
NARA [144]
The height of the plant it 63 yards 5 inches and 5
6 0
3 years ago
X-29=-3(3+x) solve x
3241004551 [841]
First you distribute -3: x-29=-9-3x
then you add 3x on both sides: 4x-29=-9
then you add 29 on both sides: 4x=20
divide 4 in both sides: x=5
Answer: x=5
4 0
3 years ago
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