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
maxonik [38]
3 years ago
9

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 $ 2650 . what was the rate charged per hour by each mechanic if the sum of the two rates was $ 205 per hour?
Mathematics
1 answer:
Marianna [84]3 years ago
5 0

Answer:

The first rate was 120

The second rate was 85

Step-by-step explanation:

r1 = x

r2 = y

10*x + 15*y = 2650

 x + y = 205               Multiply this equation by 10

10x + 10y = 2050       Subtract this equation from the top equation.

10x + 15y = 2650

10x + 10y = 2050

5y = 600

y = 600/5

y = 120

x + y =   205

x + 120 = 205

x = 205 - 120

x = 85

You might be interested in
PLEASE HELp!!
natulia [17]
The answer is B A = 0, B = 1 , C = 3
6 0
3 years ago
On Professor Hardtack's last cost accounting exam, the mean score was 71, the median was 77, and the mode was 81. (a) Check the
Inessa05 [86]

Answer:

A. The distribution should be skewed to the left because the mean is less than the median.

B. Most students scored a C or higher.

Step-by-step explanation:

A. Since mean<median<mode, we have a negative skewness and hence the distribution is skewed to the left.

B. Since the mean score is 71 and the modal score is 81, it is expected that a 'C' should be the lowest grade most students will have.

3 0
3 years ago
Read 2 more answers
The means of a proportion are 4 and 17. List all possible pairs of positive integers that could be the extremes of the proportio
I am Lyosha [343]

Step-by-step explanation:

Equating two statements is called proportion. By property of the proportion, the cross product of the mean is equal to cross product of the extreme. Also we can denote as ratio of extreme and mean.

A×B=B×C

4 0
3 years ago
Aidan is running for student body president. In today's election, he received 462 votes out of a total of 825 votes cast. What p
Temka [501]

Answer:

Aidan got <u>56%</u> of votes.

Step-by-step explanation:

Given:

Aidan is running for student body president. In today's election, he received 462 votes out of a total of 825 votes cast.

Now, to find the percent of votes did Aidan get.

<em>Total votes cast = 825 votes.</em>

<em>Votes he received = 462 votes.</em>

Now, to get the percent of votes Aidan get:

\frac{Votes\ he\ received}{Total\ votes\ cast} \times 100

=\frac{462}{825} \times 100

=0.56\times 100

=56\%.

Therefore, Aidan got 56% of votes.

5 0
4 years ago
Read 2 more answers
Given no other restrictions, what are the domain and range of the following function?
balandron [24]

Domain is: D = all real numbers

and Range is: R = {y | y > 0}

Option C is correct.

Step-by-step explanation:

We are given a function f(x) = x^2 - 2x + 1 and we need to find domain and range of this function

Domain:

The domain of  a function is the set of points for which the function is real and defined.

Since all the values give the result which is real and defined so domain is all real numbers.

Range:

The set of values of the variable that is dependent, the function should be defined.

So, all the values should be greater than 0 i.e {y | y > 0}

So, Domain is: D = all real numbers

and Range is: R = {y | y > 0}

Option C is correct.

Keywords: Domain and Range

Learn more about Domain and Range at:

  • brainly.com/question/9607945
  • brainly.com/question/1485338
  • brainly.com/question/3511750

#learnwithBrainly

8 0
3 years ago
Other questions:
  • In Exercise,Use properties of exponents to simplyfy the expression.<br> (1/6)^-3
    15·1 answer
  • Harley has 18 unit cubes. How many different rectangular prisims can he build if he uses all of the cubes?
    12·1 answer
  • Evaluate the function rule for the given value. y=15*3^x for x = -3
    14·1 answer
  • quadriliteral DEFG has verticles at D(1,0), E(-2-2) F(2,4) and G(6-3) find the verticles of DEFG after a translation of 4 units
    11·1 answer
  • How do you use the order of operations to simplify expression with exponent
    5·2 answers
  • Which could be the dimensions of a rectangular prism whose surface area is less than 160 square feet? Check all that apply.
    5·2 answers
  • Given f(x) = 2x - 7, complete parts (a) through (c).
    13·1 answer
  • Jason purchased 12 shirts for the members of a school club. Each shirt cost $5.50. Jason
    9·1 answer
  • Which equation, in point–slope form, passes through (–2, 4) and has a slope of 3?
    11·1 answer
  • Lessons
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!