Let t and f be the number to two and four seat tables respectively.
t+f=22, solve for t
t=22-f, then we are told that capacity must be less than or equal to 72 people.
2t+4f≤72, using t found above in this equation we get:
2(22-f)+4f≤72 perform indicated multiplication on left side
44-2f+4f≤72 combine like terms on left side
44+2f≤72 subtract 44 from both sides
2f≤28 divide both sides by 2
f≤14 Since f=integer
f=14, and since t=22-f
t=8
So they should purchase 14 four seat tables and 8 two seat tables.
6w^3v^2
(this is to make the answer long enough to submit)
I am not sure what the answer is
Well, if a = -1 and b = 4 then when we plug in the values of a and b into the expression we get:
.
Then simplify it:
.
The answer is A.
Hope this helps.
This expression is awkward. Your (1/4)^--2 should be written (1/4)^(-2).
Also, your x 2 should be written x^2 (the square of x).
But maybe that's not what you meant!
Your apparent use of "x" to indicate "multiply" makes things harder and more confusing. Please use " * " ONLY to denote multiplication.
Let's try again. Here's what I think I see:
(1/4)^(-2) - 1*2*1^(-1) and here is the evaluation:
16 - 2 = 32
Practice typing in expressions like these and then try to get some critique from your teacher regarding where you are correct and where you are not.