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elena-14-01-66 [18.8K]
3 years ago
6

What two equations do I use?

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0

Let...

l=length

w=width

Because we know that the perimeter is 90, we can make this equation...

2l+2w=90

Because we know that the length is 5 feet less than 4 times the width, we can make this equation...

l=4w-5

We can solve this system through substitution...

2(4w-5)+2w=90

8w-10+2w=90

10w=100

w=10 ft

l=4(10)-5=35 ft

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Write the recursive formula then determine the next term of 3,10,24,52
Schach [20]

Answer:

  • f[1] = 3
  • f[n] = 2·f[n-1] +4
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Step-by-step explanation:

We observe that first differences of the given numbers are ...

  10 -3 = 7

  24 -10 = 14

  52 -24 = 28

That is, each difference is 2× the previous one. This suggests an exponential relation that has a base of 2.

We notice that doubling a term doesn't give the next term, but gives a value that is 4 less than the next term. So, we can get the next term by doubling the previous one and adding 4.

Then our recursive relation is ...

  f[1] = 3 . . . . the first term

  f[n] = 2×f[n-1] +4 . . . . double the previous term and add 4

The next term is 2·52 +4 = 108.

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4 years ago
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olya-2409 [2.1K]

Answer:

the answer would be 21/5 or 4.5

Step-by-step explanation:

to solve this equation you would use the butterfly method

3/1 x 2/58

3x28=84 and 5x1=5

your fraction is going to be 84/5.

84 can be reduced to 21. so your <u>answer would be 21/5</u>. in the decimal form, it would be <u>4.5</u>

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Which graph shows the solution to this system of inequalities<br> y2-3x+1<br> yo 21-3
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