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
Marina86 [1]
3 years ago
5

17

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

The expressions that give the value of y are A - 3B and (1/3)A - B

The solution is (27/13, -60/13)

Step-by-step explanation:

We can see both equation A and equation B.

Equation A: 2x + (1/4)y = 3

Equation B: (2/3)x - y = 6

To find the value of y, we have to solve both equations A and equation B simultaneously. This is done by multiplying equation B by 3 and subtracting from equation A (A - 3B) to get:

(13/4)y = -15

y = -60/13

you can also get y by dividing equation A by 3 and subtracting equation B (1/3A - B)

Put y = -60/13 in equation A to get x:

2x + (1/4)(-60/13) = 3

2x = 3 + 15/13

2x = 54/13

x = 27/13

The solution is (27/13, -60/13)

You might be interested in
Use the graph to answer the question.
Lelu [443]

Answer:

Coordinate Q is (0.8, 0.7)

Step-by-step explanation:

We are told that the coordinates of point Pare (0.6,0.1).

This means that along the x-axis, x = 0.6 and along the y-axis, y = 0.1.

Now, by inspection of the graph, we can see that when we count boxes from the origin to the point P, we have 6 boxes. Thus, each box corresponds to 0.1. So, for point Q, from the origin to that point, on the x-axis, we have 8 boxes. Since one box = 0.1, then the x - value of Coordinate Q is 0.8.

On the y - axis, we see that we have one box from the origin up for the corresponding y-value of coordinate P.

This means that one box is 0.1.

For coordinate Q, we will count 7 boxes. Thus, y-value of coordinate Q is 0.7.

Thus,coordinate Q is (0.8, 0.7)

7 0
3 years ago
A civil engineer is designing a public parking lot for the new town hall. The number of cars in each row should be six less than
alisha [4.7K]

The equation which the civil engineer can use to find the number of rows is 2x² - 12x = 112. Option D

<h3>How to determine the equation</h3>

Let the number of rows be x

Number of cars in each row = x - 6 = 56

Number of rows for parking lot = 2x

Then,

Number of cars for new parking lot = 2x ( x - 6 = 56)

Expand the expression,

2 ( x - 6 = 56)

2x² - 12x = 112

Thus, the equation which the civil engineer can use to find the number of rows is 2x² - 12x = 112. Option D

Learn more about word problems here:

brainly.com/question/1781657

#SPJ1

7 0
2 years ago
A rectangle is 7 feet long by 5 feet wide. If 3 feet are removed from the length of the rectangle, what would be the area, in sq
katrin [286]
The answer to your question would be 25 sq ft
6 0
3 years ago
The rectangular room shown has a length of 20 ft, width of 48 ft, and height of 10 ft. Use the Pythagorean Theorem to find lengt
Vlad [161]
For the diagonal of the floor:
20^2 + 48^2= c^2
400+2304= c^2
c=52
For the diagonal of the cube:
52^2 + 10^2 = c^2
2704+100=c^2
c=52.95
Rounded= 53
Tell me if this helps!!!
4 0
3 years ago
Read 2 more answers
A cyclist rides 8 miles in 32 minutes. What is the speed of the cyclist in miles per hour?
Neko [114]
Well 32 minutes is half of an hour so 8 miles would be half of the full x miles
so 8 x 2 would be 16
16 miles per hour
0 0
3 years ago
Read 2 more answers
Other questions:
  • In converting 9 yards to inches, what unit (omit the number) would you place in the numerator of your ratio? Remember that there
    7·1 answer
  • What is the value of y?<br><br> Enter your answer, as an exact value, in the box.
    13·2 answers
  • You buy a 65 inch LED tv with an aspect ratio of 4:3. Find the width and height of the tv.
    8·1 answer
  • How can I calculate if a given decimal is rational or irrational. please help I forgot.
    12·1 answer
  • What is a logarithmic function?
    6·1 answer
  • F(x)=x^2+4x-2 what is the vertex
    12·2 answers
  • SOMEONE HELP ME WITH THIS MATH PLS
    5·1 answer
  • Answer correctly please please please for BL
    15·1 answer
  • Which of the following numbers<br> is a solution to this inequality?<br> 14x &gt; 36<br> 3<br> 2.
    6·1 answer
  • Help needed I’m not good at geometry
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!