Hi there!
This works because of the addition property of equality, since you are adding and subtracting values from both equations.
Hope this helps!
150 cm ......... 100 %
165 cm ...............x %
x = 165×100/150 = 16500/150 = 110 %
Answer:
x=(-15±√(79) all over 4
Step-by-step explanation:
You can do this in a few ways but I used the quadratic formula for it. Just plug the numbers into this equation: x= -b ± √(b-4ac) all over 2a.
In this case a=2, b=15, c=-8
Also, there wasn't an "x" behind 15 so I'm doing this by assuming that there is one.
Mean=(10+14+3x)/(3)
Which mean value ady stated, 18
18=(10+14+3x)/(3)
54= (10+14+3x)
54-10-14=3x
3x=30
x=10
Hope this can help.
Answer:
No se
Step-by-step explanation:
