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svp [43]
4 years ago
14

A system of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the other equation?

Mathematics
2 answers:
Stells [14]4 years ago
7 0
Y=-4x+5 I believe you just rewrite the equation like this
Juli2301 [7.4K]4 years ago
4 0

Answer:

Step-by-step explanation:

The given equation is 4x-y =5

It can be re written in slope intercept form as y  = 4x -5

and by comparison with the y =mx+b

slope of this line is 4 .

Now the concept is that this line and one another line will have only one solution only if the slope of the other line is not 4 . so we can write any equation of line whose slope is not 4 and that will be the other equation .

Lets say we want to keep the slope 2

so an equation y = 2x+4 will have one solution when solved .

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A health club charges a $50 initial fee , plus $2 for each visit . Marsha has spent a total of $144 at the health club this year
AVprozaik [17]
Use these variables to make an equation-
y is the total amount.
$50 is where you start charging(y intercept, variable b).
x is how many visits Marsha made.
The equation can be in slope-intercept form (y=mx+b)-
$144=$2x+50
Solve for x using inverse operations.

Subtract 50 from both sides-
144-50=2x+50-50
94=2x

Divide 2 from both sides-
94/2=2/2
x=47

Marsha made 47 visits to the health club.

6 0
3 years ago
Find the output y when the input x is -5<br> y=?
antiseptic1488 [7]

Answer: y=7

Step-by-step explanation: looking at the graph when x is -5 y= 7

3 0
3 years ago
Find the degree of the monomial.<br> 9xy3z7
stira [4]
The answer is 11 :)
5 0
3 years ago
Read 2 more answers
The formula distance =rate x time (d = ) tells how far an object travels at a certain rate (speed) over a certain time
Flauer [41]

Answer:

42.05 HRS

Step-by-step explanation:

D = R x T ..... D=765 MILES R= 95 MILES/HR WE HAVE TO SOLVE FOR T BECAUSE THE QUESTIONS ASKS "HOW LONG.." T = D/R AND THEN SUBSTITUTE THE DISTANCE AND RATE ;)

3 0
3 years ago
Please help with the top question !
My name is Ann [436]

9514 1404 393

Answer:

  13.3 m

Step-by-step explanation:

Let d represent the length of the diagonal. Then the length of the rectangle is (d-2) and the width is (d-6). The area is the product of length and width, so is ...

  A = LW

  83 = (d -2)(d -6) = d² -8d +12

  71 = d² -8d . . . . . . . . subtract 12 to get the constant out of the way

  d² -8d +16 = 87 . . . . add (-8/2)² = 16 to both sides to complete the square

  (d -4)² = 87 . . . . . . . write as a square

  d -4 = √87 . . . . . . . positive square root

  d = 4 +√87 ≈ 13.3 . . . . add 4

The diagonal is about 13.3 meters long.

_____

<em>Additional comment</em>

If you check to see if the side lengths actually correspond to those of a rectangle, you find that they do not. <em>The geometry described here is impossible</em>. The rectangle with the proposed relations between sides and diagonal would have a diagonal of about 12.899 m and an area of about 75.19 m².

6 0
3 years ago
Read 2 more answers
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