Answer:
X=13
Step-by-step explanation:
1: Bettina's 60, and Melvina's 20.
2: 4.5 gallons
Answer:
The advantage to the lender would be that he’s getting money & if the person doesn’t pay the rest of the price they at least got some money , and the advantage for the borrower is that they can pay the rest later.
Step-by-step explanation:
The set of points (x, 4, 8) is a line parallel to the x-axis through the point (y, z) = (4, 8) in the (y, z) plane.
Answer: 13 (and Sally will always be 3 years older than Jill)
Step-by-step explanation:
Let S and J stand for Sally and Jill's ages. We are told:
- (S-5) = (J-5)+3 [Sally is 3 years older than Jill was <u>5 years ago</u>] The 5 years ago is the reason for the (S-5) and (J-5) expressions.
If Jill is 10, how old is Sally?
(S-5) = (J-5)+3
(S-5) = (10-5)+3
S-5 = 8
S = 13
We actually don't really need an equation for solving this, other than the question asks us to write one. It doesn't matter how many years later, since Sally is 3 years older, she will always remain 3 years older, if we ignore the likelihood that the statement doesn't hold true for the period between their actual birthdays.