First angle = x
Second angle = x - 42
Sum both complementary angles = 90
x+x-42=90
2x=132
x=66⁰ - First angle
x-42=66-42=24
24⁰ - Second angle
Answer:
20
Step-by-step explanation:
Number of paperback books = 4
Percentage of total books that were paperbacks = 20%
Let total number of books = x
Hence,
20% of total books = paperback books
20% of x = 4
0.2 * x = 4
0.2x = 4
0.2x / 0.2 = 4 / 0.2
x = 20
Total number of books = 20
Answer:
red 21%
green 29%
black 17%
blue 33%
Step-by-step explanation:
total 5+7+4+8=24
red 5:24=0.21=21%
green 7:24=0.29=29%
black 4:24=0.16=17%
blue 8:24=0.33=33%
Answer:
1/4
Step-by-step explanation:
-1/2 (2/2) -> -2/4
-2/4 + 3/4 = 1/4
Answer:
The correct statment is B.
Step-by-step explanation:
A. is not correct: y = 2.4(30) - 1.8 does not equal 70...
<u>B. Is correct because the slope is 2.4 From the equation</u>
C. is not correct because the points have no 2.4 (maybe 2.2)? difference.
D. is not correct. the correlation isn't positive.
