Answer:
Step-by-step explanation:
Complementary angles form a right angle and supplementary angles form a straight angle.
<h3>#7</h3>
<u>Complementary:</u>
<h3>#8</h3>
<u>Supplementary:</u>
- 2x + 6x + 20 = 180
- 8x = 160
- x = 20
Answer:
x = - 6
Step-by-step explanation:
Given that y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = - 9 when x = 3, thus
k =
=
= - 3
y = - 3x ← equation of variation
When y = 18, then
18 = - 3x ( divide both sides by - 3 )
x = - 6
Answer:
0.1
Step-by-step explanation:
total number of marbles= 2+4+8=14 marbles
probability of getting 2blue
= 4/14×3/13= 4×3/14×13=12/182= 0.06593
to the nearest tenth= 0.1
The answer is 15 percent.
5290-4600=690
690/4600=0.15
Covert the 0.15 into percent which is 15 percent
Answer:
the first one is 13 and the second is 22