This is a variation word problem.

Mathematics

1 answer:

poizon [28]4 years ago

4 0

Good luck that is a hard question

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Gnesinka [82]

Answer:

The probability is 0.81

Step-by-step explanation:

The probability we want to find here is that;

the mail was delivered before 2 pm the first day and also delivered before 2 pm the next day

what we have to do here is to

multiply together, the probability in the two cases (for both days)

So we have this as:

0.9 * 0.9 = 0.81

6 0

3 years ago

Read 2 more answers

How does difference of squares work?

kodGreya [7K]

Every difference of squares problem can be factored as follows: a2 – b2 = (a + b)(a – b) or (a – b)(a + b). So, all you need to do to factor these types of problems is to determine what numbers squares will produce the desired results. Step 3: Determine if the remaining factors can be factored any further.

6 0

3 years ago

A gallon of milks sells for $3.18 and a quart of milk sells for $0.76. Which item has the better unit price? Justify your answer

nataly862011 [7]

Answer:

$Second\ price\ that\ is\ 1\ quart\ milk=\$0.76\ has\ better\ unit\ price$

Step-by-step explanation:

Use gallon unit:

First Price:

$1\ gallon\ milk=\$3.18\\\\$

Second Price:

$4\ quart=1\ gallon\\\\1\ quart\milk=\$0.76\\\\4\ quart\ milk=4\times 0.76=\$3.04\\\\\Rightarrow 1\ gallon\ milk=\$3.04$

$1\ gallon\ at\ first\ price\ is\ greater\ than\ the\ rate\ of\ 1\ gallon\ at\ second\ price\\\\Hence\ 1\ quart=\$0.76\ has\ the\ better\ unit\ price.$