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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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Select the answer choice below that represents 5.9 x 10-4 in standard notation.
PIT_PIT [208]
This means that you have to move the decimal point 4 decimal places to the left, as denoted by the negative sign. Thus, this would add 3 zeros before 5. The answer would be 0.00059.

I hope the explanation was clear to you. Have a good day.
6 0
3 years ago
In a contest to guess the number of jelly beans in a jar, Alice guessed 25;Betty, 18;Clare,23;Dotty,19;Edith,24;and Fran,17. Two
vampirchik [111]

Answer:

<em>There are 21 jelly beans in the jar.</em>

Step-by-step explanation:

Suppose, the number of jelly beans in the jar is  x

Two were off by 2, two were off by 3, two were off by 4. That means, the six guessed number will be:  (x+2), (x-2), (x+3), (x-3), (x+4), (x-4)

Given that, Alice guessed 25; Betty, 18; Clare, 23; Dotty, 19; Edith, 24; and Fran, 17.

So, the sum of all six guessed number will be:  25+18+23+19+24+17=126

Thus, the equation will be..........

(x+2)+(x-2)+(x+3)+(x-3)+(x+4)+(x-4)= 126\\ \\ 6x= 126\\ \\ x=\frac{126}{6}=21

So, the number of jelly beans in the jar is 21.


5 0
3 years ago
Evaluate the algebraic expression 18 + (- 31) =
frosja888 [35]

Answer:

-13

Step-by-step explanation:

8 0
3 years ago
If x=6 and y=−4, evaluate the following expression:10−4xy​
melomori [17]

Step-by-step explanation:

10 - 4(6) (-4)

10 - 4(-24)

10 + 96 = 106

3 0
3 years ago
Read 2 more answers
Joe works for a temporary employment agency that pays him $25 per week plus his regular wages, if he works a 40-hour week. If Jo
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The total he makes would be 465 dollars
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3 years ago
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