Question #96ecf

Question

Question #96ecf

1 Answer

Related questions

How do you solve systems of equations using the substitution method?
How do you check your solutions to a systems of equations using the substitution method?
When is the substitution method easier to use?
How do you know if a solution is "no solution" or "infinite" when using the substitution method?
How do you solve $y = - 6 x - 3$ $y=-6x-3$ and $y = 3$ $y=3$ using the substitution method?
How do you solve $12 y - 3 x = - 1$ $12y-3x=-1$ and $x - 4 y = 1$ $x-4y=1$ using the substitution method?
Which method do you use to solve the system of equations $y = \frac{1}{4} x - 14$ $y=1/4x-14$ and $y = \frac{19}{8} x + 7$ $y=19/8x+7$ ?
What are the 2 numbers if the sum is 70 and they differ by 11?
How do you solve $x + y = 5$ $x+y=5$ and $3 x + y = 15$ $3x+y=15$ using the substitution method?
What is the point of intersection of the lines $x + 2 y = 4$ $x+2y=4$ and $- x - 3 y = - 7$ $-x-3y=-7$ ?

Impact of this question

1016 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-02-26T10:24:13

See explanation

Explanation:

This is one of those situations where you may substitute any value in either variable as long as it fits a rather 'wide' criterion (inequality)

Let the count of rattan chairs be $r$ $r$ at $220 each
Let the count of plastic chairs be $p$ $p$ at $150 each

Then we have

$220 r + 150 p > 3700$ $220r+150p>3700$
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Or if you prefer:

Subtract $220 r$ $220r$ from both sides

$150 p > 3700 - 220 r$ $150p>3700-220r$

Divide both sides by 150

$p > \frac{74}{3} - \frac{22}{15} r$ $p> 74/3-22/15r$

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To plot
set $p$ $p$ as the equivalent of $y$ $y$ on the x,y plane
set $r$ $r$ as the equivalent of $x$ $x$ on the x,y plane

$p \to y$ $p->y$
$r \to x$ $r->x$

Tony B

Science

Math

Humanities

... and beyond

Question #96ecf

1 Answer

Explanation:

Related questions

Impact of this question