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3 years ago

You find dvds on sale! Eight dvds would cost you $79.92. What is the cost per dvd? Show your work

1 answer:

4 0

If 8 dvds cost $79.92, you would have to divide 79.92 by 8 in order to get the cost per dvd. 79.92 divided by 8 would be $9.99.

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The sum of a number, n, and a number 5 is larger than it is 41. Which of the following equations could be used to solve for the

Allisa [31]

The answer is A hope this helps

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2 years ago

A jar contains 3 red, 2 white, and 1 green marble. Aside from color, the marbles are indistinguishable. Two marbles are drawn at

IRISSAK [1]

Answer:

0.6

Step-by-step explanation:

A permutation is an arrangement of outcomes whereas a combination is a grouping of outcomes.

Order matters in case of permutations but does not matter in combinations.

Given:

Number of red marbles = 3

Number of white marbles = 2

Number of green marbles = 1

To find: probability of picking 4 marbles and getting one of each color

Solution:

Total number of outcomes = $6_C__4$ = $\frac{6!}{4!\,2!}=\frac{6\times 5\times 4!}{4!\times 2}=15$

Number of favourable outcomes = 2 red, 1 white and 1 green marble + 1 red, 2 white and 1 green marble = $3_C_2\,2_C_1\,1_C_1+3_C_1\,2_C_2\,1_C_1$ = $\frac{3!}{2!\,1!}\times \frac{2!}{1!\,1!}\times 1+\frac{3!}{2!\,1!}\times 1\times 1=6+3=9$

So, probability of picking 4 marbles and getting one of each color = Number of favourable outcomes/Total number of outcomes = $\frac{9}{15}=\frac{3}{5}=0.6$

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3 years ago

Do the set of points in the figure represents a function? Yes No

Tpy6a [65]

Answer:

yes because if you put a vertical line on it it only goes threw it once it is also called the <u>vertical line test</u>.

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3 years ago

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Two lines, C and D, are represented by the following equations:

guapka [62]

Answer:

(−2, 3), because both lines pass through this point

Step-by-step explanation:

The meaning of "solution to the system of equations" is that both lines intersect at the solution point. That is, they both pass through that point.

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3 years ago

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A scuba diver used the expression below to describe his position in relation to sea level.

alex41 [277]

It is the first statement. It is positive two, so it’s above sea level. We can immediately get rid of the last two statements. Then, it is negative 20. The is 18 feet below sea level, because 2-20 is -18. Positive 8 shows rising up by 8 feet. The correct statement is the first one.

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3 years ago

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