Answer:1/2 y
Step-by-step explanation:
We can solve this using ration reasoning:
x
2
x
1
=
y
2
y
1
Explanation:
If
x
varies directly with
y
(written
x
∝
y
), then doubling
y
means doubling
x
, so the rations of final values and initial values will be the same:
x
2
x
1
=
y
2
y
1
In this case,
x
2
9
=
24
18
x
2
=
9
⋅
24
18
=
12
Or, intuitively, if
x
∝
y
and
x
=
9
when
y
=
18
, we can conclude that
x
=
1
2
y
and
1
2
of 24 is 12.
39. It is divisible by 3 so it isn't prime.
Answer: 4:1
Step-by-step explanation: it would start at 8:2 and the lowest terms it can go are 4:1
Answer:
x = 70 degrees, y = 35 degrees.
Step-by-step explanation:
The angle marked x is a central angle, so its measure is the <u>same</u> as the measure of the intercepted arc.
The angle marked y is an inscribed angle, so its measure is <u>half</u> the measure of the intercepted arc.
