Juana has purchased 112 cases of bottled water for the annual picnic and work. Each case contains 28 bottles of water and Juana has calculated that she purchased a total of 3136 bottles. Which method can be used to show that Juana’s coucliation is reasonable? A. Round 112 to 110 and 28 to 29, then multiply.

B. Round 112 to 110 and 28 to 29, then multiply

C. Round 112 to 120 and 28 to 20, then multiply.

D. Round 112 to 120 and 28 to 30, then multiply

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step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.