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
Butoxors [25]
3 years ago
10

Two mechanics worked on a car. the first mechanic worked for 10 hours, and the second mechanic worked for 15 hours. together the

y charged a total of $ 2500 . what was the rate charged per hour by each mechanic if the sum of the two rates was $ 205 per hour?
Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0
Let x and y be the rate per hour for Mechanic 1 and 2 respectively.

Then,
x+y=205 ---------- (1)
Additionally,
10x+15y = 2500 ------ (2)

Solving equations 1 and 2;
Multiply (1) by 10 and subtract two from the result,
10x+10y = 2050
10x +15 y =2500
----------------------
        -5 y = --450 => y = 450/5 = $90
Then,
x= 205-90 = $115

Therefore,
Mechanic 1 charged $115 per hour
Mechanic 2 charged $90 per hour
You might be interested in
Will mark brainliest, pls help it's urgent due in 1 hour
dem82 [27]

Answer:

she shouldn't adjust the compass width.

3 0
2 years ago
Icy River increased the price of a ​$1.15 cola by 15​%. Find the increase in price and the new price. round to the nearest cent
madam [21]
15%  x
100  1.15        X is your variable, your unknown number and 15% has to always be over 100 , Then you have to cross multiply and divide 100 because that is the only number basically you have to just multiply across and divide 100 to make it to the nearest cent you have to round the last two numbers after the decimal Representing money.. Hope this helps!!
5 0
3 years ago
Please help me. I need help.
vagabundo [1.1K]

Answer:

28

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
4b - 7 - 15b + 3<br> Pls give full explanation I don't understand this stuff.
allsm [11]
Combine like terms so add 4b and 15b together and add 7 and 3 together and then the answer would be 19b-10
5 0
2 years ago
Read 2 more answers
Find the points of intersection of the following function graphs: y=20x−70 and y=70x+30
LekaFEV [45]

Answer:

(-2,-110)

Step-by-step explanation:

First solve for x

20x−70=70x+30

x= -2

Now substitute x for -2

y=20x−70

y=20(-2)-70

y = -110

4 0
3 years ago
Other questions:
  • The week before Jack spend 19 1/4 hours doing homework.how long did Jill spend doing homework
    15·2 answers
  • Find the unknown side length. Round to the nearest tenth a=5 b=? C=25
    9·1 answer
  • Is a theater there are 28 rows in each row there are 32 seats, each ticket coasts £19.75
    11·2 answers
  • Plz click on image and answer two of questions Thanks to anyone who answers!!!
    5·1 answer
  • A cylinder cardboard tube with a diameter of 8 centimeters and a height of 20 centimeters is used to package a gift. What is the
    13·2 answers
  • An equivalent ratio for 2/5
    12·2 answers
  • What percent of 78 = 39?
    9·1 answer
  • A car is travelling with uniform acceleration along a straight road. The road has marker posts every 100m. When the car
    5·1 answer
  • What the answer plsss
    12·2 answers
  • Use slopes to determine if the lines y=−4 and x=−1 are perpendicular.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!