<span>Simplify: 6a + 10a + 3a = 0
Combine like terms: 6a + 10a = 16a
WHICH IS:16a + 3a = 19a
19a = 0
Solving
19a = 0
Solve for a: 19a=0
Move all terms containing a to the left, all other terms to the right.
Divide each side by '19'.
a = 0
Simplify a = 0</span>
Answer:
Nina will be 18 years old when she is half as old as her mother.
Step-by-step explanation:
With the information provided, you can write an equation that indicates that Mrs. Matthews current age plus x which would be the number of years until Nina will be half as old as her mother would be equal to two times nina's age plus x, as you would have to multiply Nina's age at that time for 2 to be equal to her mother's age. The equation would be:
24+x=2(6+x)
Now, you can solve for x:
24+x=12+2x
24-12=2x-x
12=x
Finally, you have to add the value of x plus Nina's current age to determine her age when she is half as old as her mother:
12+6=18
Acording to this, the answer is that Nina will be 18 years old when she is half as old as her mother.
Answer:
13.5 meters
Step-by-step explanation:
lets take width as w
l=24
and length is 3 meters less than twice the width
so
l+3=2w
24+3=2w
27=2w
divide both sides by "2"
27/2=13.5
13.5=w
it can be 2 or more real numbers.
