Let x be the number, then 60 = 40% of x & x =60/40%=60/0.4=150
then the number of which 60 represent 40% of it is 150
2) Let x be the time needed to the 16 clerks to finish the job
In one day the 32 clerks complete a portion of 32/22 of the job
In one day the 16 clerks complete a portion of 16/x of the job
So in 1 day===> 32/22 =16/x ==> x=(22*16)/32 = 11 days
Answer:
see explanation
Step-by-step explanation:
Consider perfect squares either side of 60, that is
49 < 60 < 64, thus
< 
< 
, that is
7 < < 8
60 is closer to 64 than it is to 49
≈ 8 ← integer approximation
Answer: x = 9/5 or x = 1 4/5
Step-by-step explanation:
2/9 x = 2/5
2/9 * 9/2 * x = 2/5 * 9/2
x = 2/5 * 9/2
x = 9/5 = 1 4/5
M/2 - 5 + 3 = 2
Put each term in m/2 - 5 + 3 over the common denominator 2: m/2 - 5 + 3 = m/2 - 10/2 + 6/2:
m/2 - 10/2 + 6/2 = 2
m/2 - 10/2 + 6/2 = (m - 10 + 6)/2:
(m - 10 + 6)/2 = 2
Subtract like terms. 6 - 10 = -4:
(m - 4)/2 = 2
Multiply both sides of (m - 4)/2 = 2 by 2:
(2 (m - 4))/2 = 2×2
(2 (m - 4))/2 = 2/2×(m - 4) = m - 4:
m - 4 = 2×2
2×2 = 4:
m - 4 = 4
Add 4 to both sides:
m + (4 - 4) = 4 + 4
4 - 4 = 0:
m = 4 + 4
4 + 4 = 8:
Answer: m = 8
