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guapka [62]
3 years ago
14

There are 60 students in the speech contest. Yesterday, 2/3 of them gave their speeches. Today, 1/4 of the remaining students ga

ve their speeches. How many students still haven't given their speeches?
Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Answer:

15 students still haven't given their speeches

Step-by-step explanation:

2/3 of 60 is 40

60 - 40 = 20 left

1/4 of 20 is 5

20 - 5 = 15

15 students still haven't given their speeches

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Answer:

Step-by-step explanation:

The ratio of the employees using a laptop computer to those not using one was 1:3 in the year 2005. In 2006, the number of employees using a laptop as well as those not using it doubled. This means that both proportions would be doubled. Therefore, the ratio of the employees using a laptop to those not using one in 2006 would be

2:6

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Find the domains of the following functions:
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Hi! Does any one know how to do proportions? If so can you please help me out with these 2 problems? please show work on how you
Nataly [62]
Answers:

1.) 18 lemons
2.) 80 minutes

Explanation:

Porportions are a lot like fractions. For the first question, you can make the fraction 6/8, or 3/4 simplified. This means that for every 8 cups of water, you need 6 lemons.

Then, to find the amount of lemons you need if you have 24 cups of water, you need to think about what×8= 24. If we divide 24 by 8, we get 3, so if we multiply our fraction by 3/3, we should get the answer.

If we do 6/8 × 3/3, we get 18/24. This means that we need 18 lemons if we were to use 24 cups of water.

For the next question, our fraction 15/60, for 15 cakes baked in 60 minutes. Now we need to divide 20 cakes by 15.

This question is a little different from the first one because there will be a decimal involved. If we do 20/15, we get 1⅓. This means that this time, we will multiply 15/60 by (1⅓)/(1⅓).

If we multiply 60 by 1⅓, we get 80, which is the number of minutes needed to bake 20 cakes.

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6 0
3 years ago
Triangle ABC is a right triangle with mC = 90°, m B = 54°, and
rosijanka [135]

Answer:

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Step-by-step explanation:

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3 years ago
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Vlad1618 [11]

Answer:

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Plug in the interest rate, original amount of money, and number of years:

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I = 36

So, $36 in interest would be made

8 0
2 years ago
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