Answer:
N+F=42 & F+3N=70 System Solved: Natalie is 14 and Fred is 28
Step-by-step explanation:
Using variables N=natalies age and F=Freds age
N+F=42 ----> N=42-F (take this and plug it into the other equation)
F+3N=70 so F+3(42-F)=70 [simplify] F+126-3F=70 [further simplify]
-2F=-56 [divide -56 by -2] F=28 [then plug this number into the orig. equation]
So N+28=42 or N=14.
Answer:
300pi
Step-by-step explanation:
that is 3/4 of a circle with the radius of 20. Meaning that the area is 300pi
Here we want to have x on one side of equation so,
we put number 5 on right side of equation:
abx=5
then we divide both sides by ab to obtain x on left side:
Result:
x=<u />
Answer:
b
Step-by-step explanation:
b
D.) Dependent variable is "<span>instantaneous velocity" as it gives information of velocity at every second
Hope this helps!</span>