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
Nutka1998 [239]
3 years ago
12

The answer to this question is C) 7

Mathematics
1 answer:
Sedbober [7]3 years ago
3 0

Answer:

the answer is C)7                                        

You might be interested in
Multiply.<br> 35<br> 22<br> x____
SIZIF [17.4K]

Answer:

35 times 22 equals 770..........

4 0
3 years ago
Read 2 more answers
a mechanic worked 20 hours. another mechanic worked 15 hours. together they charged a total of $1950. what was the rate charged
Natasha_Volkova [10]

Answer: The mechanics both charged $70 and $45 per hour respectively

Step-by-step explanation: We shall start by calling the mechanics hourly rates x and y respectively. So if one worked for 20 hours and charged 20 times x dollars, and the other one worked for 15 hours and charged 15 times y dollars, totalling 1950 dollars, we can write the following expression,

20x + 15y = 1950

Also, if the sum of the two rates was 115 dollars, that means for working for an hour only, they both would earn

x + y = 115

We now have a pair of simultaneous equations

20x + 15y = 1950 --------(1)

x + y = 115 ------------------(2)

We shall use the substitution method for this problem.

From equation (2), make x the subject of the equation

x = 115 - y

Substitute for the value of x into equation (1)

20(115 - y) + 15y = 1950

2300 - 20y + 15y = 1950

By collecting like terms we now have

2300 - 1950 = 20y - 15y

(Note that when a negative value crosses to the other side of the equation, it becomes a positive value and vice versa)

350 = 5y

Divide both sides of the equation by 5

70 = y

We now substitute for the value of y into equation (2)

x + y = 115

x + 70 = 115

Subtract 70 from both sides of the equation

x = 45.

Therefore, the rate they charged per hour were $45 and $70 respectively.

7 0
3 years ago
If you have 2 linear equations and you want to find where they have the same x- and y- value on a graph you look for the
marin [14]

Answer:

Intersection of the two lines.

4 0
2 years ago
Graph y+6 = 4/5 (x+3 using the point and slope given in the equation.
egoroff_w [7]

Answer:

Slope: 4/5

Point: (-3|-6)

4 0
3 years ago
Determine whether the figure has point symmetry, line symmetry, both or neither
telo118 [61]

Answer:

Line symmetry

Step-by-step explanation:

If you drew a straight line across the figure horizontally, you would see that both halves are symmetrical.

7 0
3 years ago
Other questions:
  • 24 is 60% of what number
    8·1 answer
  • Mrs. Wong has 144 tiles that she is going to place on her square kitchen floor. If the tiles are $3.79 each, how much did Mrs. W
    10·2 answers
  • Solve the equation n/10 + 3 = 11
    7·2 answers
  • Which steps should be used to graph the equation y-<br> - 1x + 2)?
    15·1 answer
  • Solve the equation <br><br> 5x-(2x-13)=40
    9·2 answers
  • Mike had a coupon for 20% off the price of a shirt at a certain store.
    6·1 answer
  • An otter is swimming at - 4.2yo relative to the surface of the water. It dives 6.0 yds desper. After thedive, what is the otter'
    7·1 answer
  • 1) A builder laying the foundations of a garage wants to be sure he has the walls of the garage are at right angles. The length
    12·1 answer
  • I just made a purchase of $130.00 but once I got my car and looked at the receipt, I realized the salesperson who helped me did
    9·1 answer
  • Jake tossed a paper cup 50 times and recorded how it landed. the table shows the results:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!