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strojnjashka [21]
3 years ago
9

What is the cost of 1 dozen carnations if 30 cost $50.00?

Mathematics
2 answers:
ratelena [41]3 years ago
7 0
30/$50=12(the dozen)/x. x is the cost of a dozen carnations. Cross multiply for 30x=600. Divide both sides by 30 to get x by itself. x=20. $20 per dozen.
prisoha [69]3 years ago
4 0
Let's create a ratio of amount to price

if
30:$50
then
12:x

30/12 = 2.5
50/2.5 = 20

30:$50
12:$20

Another way of looking at it is like this:

If 30, costs $50, then each 3 would cost $5. Four groups of 3 in 12. 4 * $5 = $20

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Iteru [2.4K]

Answer:

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Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

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In this problem, we have that:

Mean = 49

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22 = 49 - 3*9

So 22 is three standard deviations below the mean.

Since the normal distribution is symmetric, 50% of the measures are below the mean and 50% are above the mean.

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So 58 is one standard deviation of the mean.

Of those which are above the mean, 68% are within 1 standard deviation of the mean, that is, lesser than 58.

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5 0
3 years ago
You want to build a fence around a square garden that covers 506.25 square feet. How many feet of fence will you need to complet
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puteri [66]

Answer: x=6 and the angle is 50

Step-by-step explanation:

1. a whole triangle = 180°

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3. subtract 2 from 50 and get 48

4. divide 48 by 8 and you get 6.

hope this helps :) everyone reading this have a great day!

7 0
3 years ago
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