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MA_775_DIABLO [31]
3 years ago
7

Tia’s car needs repairs. Honest Harry will charge $70 per hour plus $130 for the part. Lucky Lou will charge $80 per hour plus $

40 for the part. How long is the job if the two costs are the same?
Mathematics
2 answers:
Sergio039 [100]3 years ago
8 0

Answer:

the answer is 9

Step-by-step explanation:

elena-s [515]3 years ago
3 0
To answer the question above, let x the number of hours for the two jobs to cost equal. Harry's charge can be expressed as 70x + 130 and that of Lou is 80x + 40. Equating both, 
  
                               70x + 130 = 80x + 40      ; x = 9

Thus, the job should take 9 hours for both charges to be equal. 
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The algebraic expression you would write is 12v
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Model and partial quotient solve:<br><br> 783/4
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Read 2 more answers
What is the explict rule for the sequence 12,22,32,42​
icang [17]

The explicit rule for given sequence is:

a_n=2+10n

Further explanation:

We have to determine first of all if the sequence is arithmetic or geometric.

  • If the difference of two consecutive terms is same then the sequence is arithmetic sequence
  • If the ratio of two consecutive terms is same then the sequence is geometric sequence

Given sequence is:

12,22,32,42​

a_1=12\\a_2=22\\a_3=32\\.......\\Let\\d=Common\ difference\\d=a_2-a_1=22-12=10\\d=a_3-a_2=32-22=10

The common difference is 10 which is same for all consecutive terms. So the sequence is an arithmetic sequence.

The general formula for arithmetic sequence is:

a_n=a_1+(n-1)d\\Here,\\a_n\ is\ the\ nth\ term\\a_1\ is\ the\ first\ term\\d\ is\ the\ common\ difference

Putting the values of a1 and d

a_n= 12+(n-1)(10)\\a_n=12+10n-10\\a_n=2+10n

The explicit rule for given sequence is:

a_n=2+10n

Keywords: Arithmetic sequence, Common Difference

Learn more about arithmetic sequence at:

  • brainly.com/question/1522572
  • brainly.com/question/2491745

#LearnwithBrainly

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3 years ago
28 is what percent of 50?
nikdorinn [45]

Answer:

go to 100

56 is 56 percent of 100

28 is 56 percent of 50

Step-by-step explanation:

6 0
3 years ago
If you know how to do this, please write an answer.
daser333 [38]

hint the circle is 40 inches and the square is 100 inches

5 0
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