Homework Statement
5a = 5 - b
5a = 3 - b
Homework Equations
The Attempt at a Solution
I got the solution set to be 1/2, 5/2
i used substitution for substituting a into b of the second equation, just like they were x's and y's just used a's and b's there is no difference...
thankyou phinds for confirming.
Thanks for completing those equations Michael Redei, i seen them done that way and I didn't understand it, its much more clear now.
The way this equality is written is correct.
So i reworked the problem, and I get this answer instead.
2* 7/2*x >= -1/4 *2
7x >= -1/2
7x/7 >= -1/2 / 7/1
x>= -1/14
which on a number plot should be about 0 to wherever (infinity)? including 0.
Homework Statement
find the slope-intercept form for the line satisfying the following conditions
x intercept 2, y intercept 2/3
Please let me know if I solved this correctly. Thankyou.
Homework Equations
The Attempt at a Solution
2, 0
0,2/3
(2/3 -0) / (0 - 2)
2/3 / -2/1
2/3 * -1/2...
Homework Statement
7/2x >= -1/4
then put it on a number plot.
Homework Equations
The Attempt at a Solution
7x/7 >= -2/4 = -1/2
-1/2 *7/1 = -7/2
x>= -7/2 and I'm not sure if I'm even correct for that answer, and I have to put it on a number plot.
Homework Statement
the perimeter of a rectangle is 24 ft. the length is 4 ft longer than the width find the dimensions
width x
length x+4
however, I should be doing it like this:
a first equation should start like: 2x+2y=?
and the second should start like x=y+?
so what's the...
Homework Statement
solve.
.2y^3 + .6y^3 - .5y^3
I believe the answer to be .3y^3
Homework Equations
The Attempt at a Solution
i got the answer to be .8y^3 - .5y^3
= .3y^3
I think this is correct, I'm not sure, please let me know if I finished this correctly.