Answer:
The value of x in terms of b is:
The value of x when b is 3 is: x = -1
Step-by-step explanation:
We are given the function:
First we need to find
The value of x in terms of b
We need to find value of x
Multiply -2 with terms inside the bracket
Subtract 10 from both sides
Divide both sides by -2b
So, The value of x in terms of b is:
The value of x when b is 3
We have the equation for the value of x in terms of b:
Put b = 3
So, The value of x when b is 3 is: x = -1
<span>The first two cuts can intersect at only 1 pt regardless of where they are placed.
So 4 pieces there.
The last cut can only intersect each other cut a 1 pt, regardless of placement. As long as the intersection is different than the first intersection, then you will have 7 pieces.</span>
Answer:
Step-by-step explanation:
Let s represent the son's age now. Then s+32 is the father's age. In 4 years, we have ...
5(s+4) = (s+32)+4
5s +20 = s +36 . . . . . eliminate parentheses
4s = 16 . . . . . . . . . . . . subtract s+20
s = 4
The son is now 4 years old; the father, 36.
_____
<em>Alternate solution</em>
In 4 years, the ratio of ages is ...
father : son = 5 : 1
The difference of their ages at that time is 5-1 = 4 "ratio units". Since the difference in ages is 32 years, each ratio unit must stand for 32/4 = 8 years. That is, the future age ratio is ...
father : son = 40 : 8
So, now (4 years earlier), the ages must be ...
father: 36; son: 4.
Answer:
hmmm
Step-by-step explanation: