Distributive property says a(b+c)=ab+ac so
4(3x+2)=4(3x)+4(2)=12x+8
then add
12x+8-2
12x-6
it could also be 6(2x-1)
factor 20b-16
find the greatest common factor of both
20=2 times 2 times 5
16=2 times 2 times 2 times 2
GCF=2 tiemes 2=4
20b-16
undistribute 4 from each (divide each by 4)
4(5b-4)
Answer:
40%
Step-by-step explanation:
everything is 100% so you have to
100-60=40
40% of people do not walk to school
The first one is right and the third one is right, but you need to switch the 15% and the 95%.
In #2, it's asking for the kids that <em>are not</em> Michael, so it'd be 18/19. Which is then rounded to roughly 95%.
#4 asks for 6/40 = 15%
So assuming that each thing is 1.6:3 smaller
radius=1.6r to radius=3r
height=1.6h to height=3h
volume=pi times r^2 times height
1.6 3
pi times (1.6r)^2 times 1.6h to pi times (3r)^2 times 3h
pi times 2.56r^2 times 1.6h to pi times 9r^2 times 3h
pi times 4.096hr^2 to pi times 27hr^2
so the ratio is
pi times 4.096hr^2:pi times 27hr^2
divide both sides by pi
4.096hr^2:27hr^2
divide both sides by hr^2
4.096:27
answer is 4.096/27
Answer: 27 minutes
Step-by-step explanation:
We know that amount of words is equal Rate x Time
If Jeanine types at a rate of 90 words per minute
Work = 90 x 18 = 1620
Maurice time will be 1620/60 = 27
