The known facts
- the sum of Natalie's age and Fred's age is 36
- the sum of Fred's age times four and Natalie's age is 72
Now, let's set up the equations where N is Natalie's age and F is Fred's age.
N + F = 36 ---- equation 1
N + 4F = 72 ---- equation 2
equation 2 minus equation 1 ---> 3F = 36 ---> F = 12, thus N = 24
Thus Fred is 12 years old, and Natalie is 24 years old.
Answer:
$17.53
Step-by-step explanation:
$385.66 divided by 22 equals the how much each book cost
Write the folowing in standard form and you well get
#1 is 5b
#2 is b−8x+<span>4</span>
I dont really know the answer but u can use this app called photomath and it will help