Answer:
A: x<3 (x is smaller than three)
If X is between P and Q, then PQ is the whole line segment and XQ and XP are line segments that add up to PQ. Therefore, you can make an equation where XQ and XP add up to PQ.
XQ + XP = PQ
(3k) + (7k - 2) = 6k + 18
Combine like terms.
10k - 2 = 6k + 18
Add 2 to both sides.
10k = 6k + 20
Subtract 6k from both sides.
4k = 20
Divide both sides by 4.
k = 5
Plug 5 for k into XP.
XP = 7(5) - 2 ⇒ 35 - 2
XP = 33
Ralph (r): a + 5
Alphonse (a): a
Ralph + Alphonse = Total
(a + 5) + (a) = 73
2a + 5 = 73
2a = 68
a = 34
Ralph: a + 5 = 34 + 5 = 39
Answer: Ralph has 39 marbles, Alphonse has 34 marbles
I only agree with the first student strategy of multiplying the area of the base with the height.
<h3 /><h3>Volume of a cylinder</h3>
A cylinder is made up of two circles at the top and the base.
The volume of the cylinder can be expressed as:
V = Bh
where
B is the base area
h is the height of the cylinder
V = πr²h
HEnce I only agree with the first student strategy of multiplying the area of the base with the height.
Learn more on volume of cylinder here; brainly.com/question/9554871
