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pogonyaev
3 years ago
6

Each week Tim wants to increase the number of sit ups he does by to set up’s the first week he does 15 sit ups each day. Write a

n explicit function in the form f(n) =mn+b to represent the number of sit ups f(n) Tim does daily in week n.
Mathematics
1 answer:
Alex17521 [72]3 years ago
4 0

Answer: f(n+ 1) = f(n) + 2, where f(1) = 15.

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A standard number cube is tossed x times. How many different outcomes are possible?
ollegr [7]
It would be c. 6x I think I’m not sure
7 0
3 years ago
A ball is dropped from a height of 64 feet. It's height, in feet, can be modeled by the function h(t)= -16t *power of 2* + 64, w
Assoli18 [71]
2 seconds because t=(64/16)^(1/2)
5 0
3 years ago
I really need to know how long it takes the large pipe on its own
Andreyy89

s = hours it takes the small pipe on its own.


L = hours it takes the large pipe on its own.


we know the small pipe can do it in 11 hours total, so s = 11, so, how much of the whole job has the small done in 1 hour only?


well, if it takes 11 hours to do the whole thing, in 1 hour it has done only 1/11 of the whole job.


we know both pipes working together can do it in 6 hours flat. So in 1 hour only, both of them have done only 1/6 of the whole thing.


in that 1 hour, how much has the large one done? well, it has only done 1/L of the job.


\bf \stackrel{\textit{how much has it been done by both in 1 hour}}{\stackrel{\stackrel{small}{rate}}{\cfrac{1}{s}}+\stackrel{\stackrel{large}{rate}}{\cfrac{1}{L}}~~=~~\stackrel{job}{\cfrac{1}{6}}} \\\\\\ \cfrac{1}{11}+\cfrac{1}{L}=\cfrac{1}{6}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{66L}}{6L+66=11L}\implies 66=5L \\\\\\ \cfrac{66}{5}=L\implies 13\frac{1}{5}=L\impliedby \textit{13 hours and 12 minutes}


and you can round that up as needed.

7 0
3 years ago
PLEASE HELPPPPP
Flauer [41]

Answer:

Cost of 1 rose bush = x = $5

Cost of 1 geraniums = y = $2

Step-by-step explanation:

DeShawn and Mike each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store.

Let us represent:

Cost of 1 rose bush = x

Cost of 1 geraniums = y

DeShawn spent $13 on 1 rose bush and 4 geraniums.

x + 4y = 13..... Equation 1

x = 13 - 4y

Mike spent $56 on 10 rose bushes and 3 geraniums.

10x + 3y = 56....... Equation 2

We substitute 13 - 4y for x in Equation 2

10(13 - 4y) + 3y = 56

130 - 40y + 3y = 56

Collect like terms

- 40y + 3y = 56 - 130

-37y = -74

y = -74/37

y = $2

Solving for x

x = 13 - 4y

x = _13 - 4 × $2

x = $13 - $8

x = $5

Therefore,

Cost of 1 rose bush = x = $5

Cost of 1 geraniums = y = $2

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=-a-%5Cfrac%7B7%7D%7B8%7D%20a" id="TexFormula1" title="-a-\frac{7}{8} a" alt="-a-\frac{7}{8} a"
Virty [35]

Step-by-step explanation:

-a-7a/8

-8a-7a/8

-15a/8

Hope it helps you

6 0
3 years ago
Read 2 more answers
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