10% = 50
30% = 150
1% = 0.5
2% = 1
150 + 1 = 151 books should be mysteries
Answer:
blue circle = 62.8 cm
orange circle = 31.4 cm
Step-by-step explanation:
orange circle = π2r = (3.14)(2)(5) = 31.4 cm
blue circle = π2r = (3.14)(2)(10) = 62.8 cm
Answer:
2x-3=-6
3x-1=-3
Step-by-step explanation:
P=2
3p-1=5p-5-14+4p
3p-1=9p-19
-1=6p-19
18=6p
p=2
Answer:
r = 2.5
Step-by-step explanation:
x is directly proportional to y. This can be written as,
x ∝ y
In terms of constant, the proportionality can be written as,
x = ry
Where r is the constant. The table has a set of values for x and y. Let's substitute the values in the first row into the equation with the constant.
10 = r × 4
r =
r = 2.5
Lets check with the second row.
12.5 = r × 5
r =
r = 2.5
Since both sets of values have the same answer for the constant, this means that the third row of values should probably have the same constant.
r = 2.5