Answer:
b. 23.3
Step-by-step explanation:
1.(25)^2=x^2 + (9)^2
625= x^2 + 81
2. subtract 81
544= x^2
x= 23.3
Answer:
49
Step-by-step explanation:
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5 is 1/40 of 200.
Therefore, 35 is 7/40 of 200.
7/40 = (17.5)/100. Therefore, 35 is 17.5% of 200.
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To make life easier. Just say that 35/200 =17.5/100.
So 35 is 17.5% of 200.
Person = 1 head and 2 legs
horse = 1 head and 4 legs
p +h = 74
p = 74-h
2p +4h = 196
2(74-h) +4h = 196
148-2h +4h = 196
148 +2h = 196
2h = 48
h = 48/2 = 24
24 horses
50 people
answer is B
Answer:
Step-by-step explanation:
Comment
The first step is to find the surface area of 1 fence post.
The formula is
Area_ends = 2 pi r^2 for the ends.
Area_body = 2*pi*r * h
Givens
r = d/2 r is the radius ; d is the diameter
r = 1/2 foot
h = 10 feet
Solution
1 fence post
Area = ends + area body
Area = 2*3.14 * (1/2)^2 + 2 * pi * r * h
Area = 2*3.14* (1/2)^2 + 2 * 3.14 * 1/2 * 10
Area = 1.57 + 31.4
Area = 32,97 square feet.
10 fence posts
10*32.97 = 329.7 square feet
Answer
10 fence posts have 329.7 square feet in area.