B: $8.75 :)))))))))))))))))))))
Answer:
I/pr = t
Step-by-step explanation:
It's actually very simple:
~you have to make it into a distributive problem to get t from the other variables.
I= prt
I= t(pr)
Divide both sides by pr
I/pr= t(pr)/pr
I/pr = t
Yes the answer looks unfinished, but that is what literal equations look like in the end.
Make sure that I is capitalized or else you will get it wrong.
<h3>
Answer: Negative</h3>
======================================================
Explanation:
3/7 = 0.42857 approximately
Pick a number between that value and 5, not including either endpoint. Let's say we pick x = 2
Plug x = 2 into the f(x) function
f(x) = (x - 5)(2x + 7)(7x-3)
f(2) = (2 - 5)(2*2 + 7)(7*2-3)
f(2) = (2 - 5)(4 + 7)(14-3)
f(2) = (-3)(11)(11)
f(2) = -363
The actual result doesn't matter. All we're after is whether the result is positive or negative. We see the result is negative. This means f(x) is negative when 3/7 < x < 5. The f(x) curve is below the x axis on this interval.
X squared+y=18
x+y=6. use elimination method.(+y and +y cancels
x squared -x=x
18-6=12
x=12
for y take one of the above equations
x+y=6(replace x with 12
12+y=6(collect the like terms
y=6-12
y=-6
so x=12 and y=-6
Your marked down price would be $562.02. I included a picture of how I got that, but I'll try to explain it as well. 0.87 in a percentage is 87% (I know this because in order to get a percentage you multiply 0.87 by 100 and get 87%). Once I did that I set up a ratio where I made 100% and $646.00 equal to each other because that is the original price. And I made 87% equal to nothing or if you want to you can put x there. I then cross multiplied 87 and 646 which gave me 56202, and then divided that number by 100 which gave me my answer of $562.02, which is 87% of your original price.