1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mario62 [17]
2 years ago
6

Two mechanics worked on a car. The first mechanic charged $95 per hour, and the second mechanic charged $110 per hour. The mecha

nics worked for a combined total of 35 hours, and together they charged a total of $3550. How long did each mechanic work?
Firstmechanic:hours
Secondmechanic:hours
Mathematics
1 answer:
Katena32 [7]2 years ago
6 0

Answer:

1st mechanic:20hours

2ndmechanic:15hours

Step-by-step explanation:

1stmechanic:20hours=20x95

                                   =$1900

2nd mechanic:15hours=15x110

                                     =$1650

total=<u>$1900+$1650</u>

       =$3550

You might be interested in
What does it mean to be a medium of exchange?
evablogger [386]
D. Any item that maintains its worth over time. Plz mark Brainliest
6 0
2 years ago
3x + 5y = 11<br> 9x + 15y = 33
Andrei [34K]

Answer:

3x + 5y = 11      ->      y = -3/5x + 11/5

9x + 15y = 33      ->      y = -3/5x + 11/5

6 0
3 years ago
Prove that tan 10+tan 70'+taniou = tanio tanfo'tam 1oo.​
Galina-37 [17]

Question:

Prove that:

tan(10) + tan(70) + tan(100) = tan(10). tan(70). tan(100)

Answer:

Proved

Step-by-step explanation:

Given

tan(10) + tan(70) + tan(100) = tan(10). tan(70). tan(100)

Required

Prove

tan(10) + tan(70) + tan(100) = tan(10). tan(70). tan(100)

Subtract tan(10) from both sides

- tan(10)+tan(10) + tan(70) + tan(100) = tan(10). tan(70). tan(100) - tan(10)

tan(70) + tan(100) = tan(10). tan(70). tan(100) - tan(10)

Factorize the right hand size

tan(70) + tan(100) = -tan(10)(-tan(70). tan(100) + 1)

Rewrite as:

tan(70) + tan(100) = -tan(10)(1-tan(70). tan(100))

Divide both sides by 1-tan(70). tan(100)

\frac{tan(70) + tan(100)}{1-tan(70). tan(100)} = \frac{-tan(10)(1-tan(70). tan(100))}{1-tan(70). tan(100))}

\frac{tan(70) + tan(100)}{1-tan(70). tan(100)} = -tan(10)

In trigonometry:

tan(A + B) = \frac{tan(A) + tan(B)}{1 - tan(A)tan(B)}

So:

\frac{tan(70) + tan(100)}{1 - tan(70)tan(100)} can be expressed as: tan(70 + 100)

\frac{tan(70) + tan(100)}{1-tan(70). tan(100)} = -tan(10) gives

tan(70 + 100) = -tan(10)

tan(170) = -tan(10)

In trigonometry:

tan(180 - \theta) = -tan(\theta)

So:

tan(180 - 10) = -tan(10)

Because RHS = LHS

Then:

tan(10) + tan(70) + tan(100) = tan(10). tan(70). tan(100) has been proven

6 0
3 years ago
In six years, clem kadiddlehopper will be five time as old he was 26 years ago. how old is he now?
levacccp [35]

Answer:

he is currently 34

Step-by-step explanation:

x + 6 = 5(x-26)

x + 6 = 5x - 130

 +130        +130

x + 136 = 5x

-x             -x

136 = 4x

/4       /4

x = 34

You can check your work as well:

34 + 6 = 40

34 - 26 = 8

8 x 5 = 40

3 0
3 years ago
Plzz HELP DUE tomorrow HELPPPon 3 4 5 7
aliya0001 [1]
Number 3 is .4 i think just minus 1.2 - .8
7 0
2 years ago
Read 2 more answers
Other questions:
  • Select the factors of x2 − 10x + 25.
    9·2 answers
  • Helppppppppppppppppppppppppppppppppppp
    9·1 answer
  • Solve <img src="https://tex.z-dn.net/?f=a%5E%7B3%7D" id="TexFormula1" title="a^{3}" alt="a^{3}" align="absmiddle" class="latex-f
    6·2 answers
  • What is the elimination of 2a+3b=12 and 5a-b=13
    7·2 answers
  • If you borrow $900 for 6 years at
    9·1 answer
  • Someone please help me ! Its past due and Ive been busy.. D:
    10·1 answer
  • HELP ME ON GEOMETRY!!! PLZ<br> NO LINKS! &gt; i will report.
    14·1 answer
  • Need help with this geometry question
    15·1 answer
  • What is the volume of the cone
    10·1 answer
  • 7 cm<br> 10.5 cm<br> 13 cm<br> Your Turn!<br> 3 m<br> 15 m<br> 11 m<br> 5m
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!