Mm i think 7 you just have to divide like the number by 2 like 40 divided by 2 is 20 then divide the 20 and you get 10 idk
Perimeter = 2(l + w)
Thus,
102 = 2(l + w)
l = 6 + 2w
102 = 2( 6 + 2w + w)
102 = 12 + 4w +2 w
102 = 12 + 6w
90 = 6w
Thus, w = 15.
Length = 6 + 2w
= 6 + 30
= 36.
Thus, the length is 36 meters and width is 15 meters.
Hi
24% of 80 is 19.2
100% ⇒ 80
24% ⇒ x
100x = 24·(80)
100x = 1920
x = 1920/100
x = 19.2
Answer:
a) 1504
b)
Step-by-step explanation:
A
a. no of people that are male = 42
b. no of people that study biology = 34
c. no of people that do both = 1428(42 × 34)
d. no of people that are Male or study biology or both = 42 + 34 + 1428= 1504
B.
a.no of people that are male or female = 90
prob(male) = 14 ÷ 90
= 0.16
b. prob(bio) = 34 ÷ 34
= 1
c.prob(both) = 0.16
d. prob(all) = 0.16 + 1 + 0.16
= 1.32