rewrite the equation 4x-10y=11 as a funtion of x?

Question

The sum of two numbers is 35. Their difference is 11. What are the two numbers?

That's it......hope someone can help on these....have done 40 problems already....brain dead

Answer 1

Question 1
4x = 10 y + 11
x = (10 / 4) y + 11 / 4
x = (5 / 2) y + 11 / 4

Question 2
Let numbers be x and y
x + y = 35
x - y = 11-----ADD
2x = 46
x = 23
y = 12

Answer 2

To rewrite this equation as a function of x, you've got the flexibility to desire to settle on for y (get y all on my own on one area of the equation). to attempt this subtract 4x from the two aspects. that provides you -10y = 11 - 4x. Then divide the two aspects by using ability of -10. this could grant y = -11/10 + 4/10, or in case you rearrange it, y = 2/5 - 11/10, so C. want this helps!

Answer 3

4x = 11 + 10y
x = (11 + 10y) / 4


x + y = 35 and x - y = 11

x = 35 - y in the first equation
substitute for x in the second equation
(35 - y) - y = 11
35 - 2y = 11
-2y = -24
y = 12

substitte 12 for y:
x + 12 = 35
x = 23

now check by plugging the number for both equations:
x + y = 35
23 + 12 = 35 CHECK
x - y = 11
23 - 12 = 11 CHECK

Answer 4

"as the function of x" means x is the independent variable, and you need to solve for y

4x - 10y = 11
-10y = -4x + 11
y = (2/5)x - 11/10


let x and y be the two numbers
x + y = 35
x - y = 11

add the two equations
2x = 46
x = 23

23 + y = 35
y = 12

so the two numbers are 23 an 12

Answer 5

F(X)=(10Y+11)/4

X+Y=35
X-Y=11 add
2X=46
X=23 Y=12
CHECK X-Y=11

Answer 6

When we write something as a function of x, what we are trying to do is get y by itself. We use the notation f(x), which literally means the function of x.
So...
4x - 10y = 11
-10y = 11 - 4x
y = -11/10 + (4/10)x
f(x) = (4/10)x - (11/10)

--------------------------------------------------------
Add these two equations together, and the y will cancel out...
x + y = 35
x - y = 11
2x = 46
x = 13
Put this back into either equation...
13 + y = 35
y = 12

Answer 7

you should do your own homework.

"function of x" = f(x) = y
so solving for y

f(x)=(4x-11)/10

x + y = 35
x - y = 11

you can directly add the two so
2x = 46
x = 23

and by substitution
23 + y = 35
y = 12

Answer 8

f(x)=-11+4x/10


x+y=35
x-y=11

x=11+y

(11+y)+y=35
11+2y=35
2y=24
y=12

x+12=35
x=23

The numbers are 12 and 23.

Answer 9

4x=11+10y
x=(11+10y)/4(this is function of x)

x+y=35
x-y=11
-------------
2x=46
x=23
therefore y=12
got it!!!!!