What is 3 1/2 of a dozen eggs

2 answers:

5 0

'of' means multiply

convert 3 and 1/2 to a improper fraction for easier mutlipying
3 and 1/2=3+1/2=6/2+1/2=7/2

a dozen is 12 eggs

7/2 of a dozen means
7/2 times 12=84/2=42

that is 42 eggs

Aloiza [94]3 years ago

3 0

There are 12 eggs in a dozen. We can set up a cross-multiplication problem to solve this. 12/100=3.5/x

3.5 times 100 is 350, or two decimal places to the right. 12 times x is 12x. Now we can solve for x.

12x=350

divide 12 on both sides to isolate x.

350 divided by 12 is 29.1666667

so 3.5 is 29.66666667 of 12.

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<h3>What is equation?</h3>

An equation in math is an equality relationship between two expressions written on both sides of the equal to sign.

The complete question is:

An ongoing promotion at a department store gives customers 20% off the portion of their bill that is over $100. Ruby's total bill at the department store after the promotion has been applied is $250. If x represents the amount of money Ruby would have spent on the same purchase at the department store without the promotion, which of the following equations best models the situation?

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B. 0.8x + 100 = 250

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D. 100 + 0.8(x - 100) = 250

Given:

Department store gives 20 % off the portion of the bill that is over 100 dollars.

Total bill = 250

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Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$