Answer:
y=2x+8
Step-by-step explanation:
The slope intercept form is:
y=mx+b
with m and b already given, just plug in m and b and you will get your answer.
I think #7 is 40
#9 is 300
The answer would be .4% of the 150 would be boys choosing this. Here's my work.
First, I found out what 3/5 of 150 would be (divided by 5, then multiplied by 3)
Then I subtracted that number from 150 and ended up with 60 (since 3/5 of 150 is 90)
And finally, I took 60 and divided that by 150 to get .4% of the 150 students who said their fav flavor of ice cream was chocolate was boys.
Answer:
$6.30 each bottle
Step-by-step explanation:
What you do is you take $4.50 and times it by .40
<em>4.50 x .40 = 1.80</em>
<em>1.80 + 4.50 = 6.30</em>
$6.30 each bottle
Answer:
60ft
Step-by-step explanation:
Let's x, y be the width and length of the surrounding rectangle. Since the area is 450 sq feet, this means xy = 450 or y = 450/x
The perimeter of this rectangle is (since there are 3 sides only)
f(x,y) = 2x + y
This is something we need to minimize. We can start by substituting y = 450/x
f(x) = 2x + 450/x
Let's take the first derivative of this function and set it to 0
y = 450 / 15 = 30ft
so the minimum perimeter that needs taping over is
f(x,y) = 2x + y = 2*15 + 30 = 60ft