Let x be the time required to do the job when they work together.
1/x = 1/9 + 1/10 = 19/90
x = 90/19 = 4.7 hours
Answer:
4/3 sugar per ounce or decimal 1.333333333333....
Step-by-step explanation:
Simplify the following:
14/(10 + 1/2)
Put 10 + 1/2 over the common denominator 2. 10 + 1/2 = (2×10)/2 + 1/2:
14/((2×10)/2 + 1/2)
2×10 = 20:
14/(20/2 + 1/2)
20/2 + 1/2 = (20 + 1)/2:
14/((20 + 1)/2)
20 + 1 = 21:
14/(21/2)
Multiply the numerator of 14/(21/2) by the reciprocal of the denominator. 14/(21/2) = (14×2)/21:
(14×2)/21
The gcd of 14 and 21 is 7, so (14×2)/21 = ((7×2) 2)/(7×3) = 7/7×(2×2)/3 = (2×2)/3:
(2×2)/3
2×2 = 4:
Answer: 4/3
The width of the rectangle is 11.5
Step-by-step explanation:
No. of government officials = 15
No. of spies among the officials = 10
No. of people to whom secret info is given = 8
Probability =
5/8 = 0.625