Answer:
<em><u>30 girls in the class</u></em>
Step-by-step explanation:
12 = 40%
12/40 = 1%
.3 = 1%
.3 * 100 = 100%
30 = 100%
30!
Answer:
12 + r or r + 12
Step-by-step explanation:
Either way can be written as the expression 12 is more than r or x
Answer:
The equation should be: y=0.61x+38.16
Step-by-step explanation:
Minimally, the bill will be at least 38.16, so this is our constant. For every mile you drive (x), you will be charged an additional 0.61 per mile. Y equals the total bill.
The radius of the hemisphere is 9.5 inches.
The diameter of the hemisphere is 19 inches.
The surface area of the hemisphere is 850.2 inches²
<h3>How to find the surface area of an hemisphere?</h3>
circumference of a circle = 2πr
where
Therefore,
19π = 2πr
2r = 19
r = 19 / 2
r = 9.5 inches
diameter = 9.5 × 2 = 19 inches
Therefore,
surface area of an hemisphere = 3πr²
surface area of an hemisphere = 3 × 3.14 × 9.5²
surface area of an hemisphere = 850.155 inches²
surface area of an hemisphere = 850.2 inches²
learn more on hemisphere here: brainly.com/question/14076143
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