Answer:
y=6x+8
Step-by-step explanation:
y=mx+b
-4=6(-2)+b
-4=-12+b
8=b
Y = kx as y and x are directly proportional
6 = 10k
k = 0.6
y = 0.6x
18 = 0.6x
x = 30
Answer:
$75
Step-by-step explanation:
I just guessed numbers until 80% off a number hit 60 and that was 75
Answer: A) 24.8 B) 8.8
Step-by-step explanation:
You could try using cosine ( adj. over hypotenuse) on a calculator.
I got 45 for x and 135 for z.
X and 3x are supplementary (they equal 180) x+3x=180 — 45+3(45)=180
Then x and z are also supplementary x+z=180 — 45+z=180
(45-45)+z=180-45
Z=135
Sorry if this is wrong. I did my best, hope it helps
