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Slav-nsk [51]
3 years ago
9

While catching fireflies, you and a friend decide to have a competition. After m minutes, you have (3m+13) fireflies and your fr

iend has (4m+6) fireflies. a. Write an expression in simplest form that represents the number of fireflies you and your friend caught together. Expression:
Mathematics
1 answer:
satela [25.4K]3 years ago
5 0

Answer:

7m + 19

Step-by-step explanation:

you: 3m + 13

Friend: 4m + 6

Add

Total = you + your friend

Total = 3m + 13 + 4m + 6   Put like terms together

Total = 3m + 4m + 13 + 6   Combine like terms

Total = 7m + 19

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a plumber charges $50 for every house call and an additional $70 for each hour of work for one house call yesterday the plumber
sleet_krkn [62]

Answer:

5.5 hours

Step-by-step explanation:

Since every house has an initial charge of $50, we can begin with that

($50)

Then, let's define h as the number of hours. We know every hour is $70, although the hours is yet unknown so that can be

($70 * h) or simply ($70h)

Now, we know the total should end up to be $435, so after PEMDAS the equation will be

($70h + $50 = $435).

We subtract 50 from both sides so now we have $70h = $385.

Now we divide both sides by 70, giving us h = 5.5. Hope it helped!

4 0
3 years ago
The following data give the annual salaries (in thousand dollars) of 20 randomly selected health care workers. 50 72 56 38 46 65
Afina-wow [57]

Answer:

So, the interquartile range is IQR=22.5.

Step-by-step explanation:

Let us write the numbers in ascending order:

34, 37, 38, 40, 44, |  46, 50, 51, 55, 56, |

57, 61, 62, 65, 65, | 68, 68, 72, 73, 76.

We calculate quartile 1:

Q_1=\frac{44+46}{2}=45

We calculate quartile 2:

Q_2=\frac{56+57}{2}=56.5\\

We calculate quartile 3:

Q_3=\frac{65+68}{2}=67.5\\

We calculate the interquartile range:

IQR=Q_3-Q_1\\\\IQR=67.5-45\\\\IQR=22.5

5 0
3 years ago
Place the following numbers in order from least to greatest.
jekas [21]

Answer:

B

Step-by-step explanation:

.4 as we know can also be handled as .40, as the zero helps us determine the difference in value. 50%, though it is a percentage, can be put into decimal form. That would be .5, or again, we could add a zero to help us out, which would make it .50. As of right now, .4 is less than 50%. 3 and 13 are whole numbers, so they do not really need deep observation, except that 3 is less than 13. That would make the order of number from least to greatest .4, 50%, 3, and 13.

6 0
3 years ago
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Semenov [28]
6898 7657 6541 9068 is the coded credit card #
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3 years ago
What is 3/8 as a decimal and percent?
N76 [4]
37.5 and 3750% because 100 divided by 8 is 12.5 . 12.5 x 3 equal 37.5 which is your decimal and you move the decimal two places to the right to get 3750%
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3 years ago
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