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seraphim [82]
3 years ago
10

Super Salad Dressing is made with 8 mL of oil for every 3 mL of vinegar. Which mixtures will taste the same as Super Salad Dress

ing?
Mathematics
1 answer:
sesenic [268]3 years ago
8 0

Answer: The Answers Are: A, C, E

Step-by-step explanation: Find the Equivalent Ratios! :)

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If John can mow the lawn in 2/3 of an hour and George can mow the lawn in 1 hour, how long will they take to mow the lawn togeth
snow_tiger [21]
This is esay to do when you realize the the speed of mowing is addtive. This is if John mows at 1 lawn / (2/3) hour and Gerge mows at 1 lawn /  1hour, the total speed of mowing is:

1 / (2/3) + 1 = 3/2 + 1 = 5/2

=> 5/2 of lawn per hour

Now, the time is calcualted as the amount of lawn divided by the speed:

1 lawn / (5/2 lawn/hour) = 2/5 hour.

Answer: 2/5 of an hour.
8 0
3 years ago
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Students at a basketball camp each attempted 5 free throws. The camp instructor recorded the number of free throws that each stu
sergeinik [125]

Answer:

A,C,D,B

Step-by-step explanation:

5 0
2 years ago
Find z such that 7.5% of the standard normal curve lies to the left of z.
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A probability of 0.075 corresponds to a z-score of about z\approx-1.44, i.e.

\mathbb P(Z
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3 years ago
I am in algebra 1, please help i am so lost :(
SSSSS [86.1K]
Doug is 5 years old.
5 + 3 = 8
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3 0
3 years ago
How can you determine if you need to use a combination or permutation to count the number of outcomes? Which will usually have m
Nadya [2.5K]

Answer with Step-by-step explanation:

Permutation : It is an arrangement of r elements out of n elements.

Combination : it is a selection of r element out of n elements .

Suppose we have a set

S={1,2,3}

If two elements are taken at a time then

Using permutation formula

Total number of outcomes=3P_2

Total number of outcomes=\frac{3!}{(3-2)!}

Total number of outcomes=3!=3\times 2\times1=6

Using combination formula

\binom{n}{r}=\frac{n!}{r!(n-r)!}

Total number of outcomes=\binom{3}{2}=\frac{3!}{2!1!}

Total number of outcomes=\frac{3\times2!}{2!}

Hence, total number of outcomes=3

Total number of outcomes determined by permutation have more outcomes.

Because permutation is an arrangement of elements  therefore, it consider order of arrangement of element   but combination is a selection of elements it does no consider order of elements

Arrangements of two elements out of 3 elements

{1,2},{2,3},{2,1},{3,2},{1,3},{3,1}

By using combination if two elements taken at a time then combination

{1,2},{2,3},{1,3}

4 0
3 years ago
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