Answer:
The person has a speed of 12 miles per hour.
Step-by-step explanation:
The ratio is 12 miles to 1 hour.
This means, that in every hour, the person can move 12 miles and has a speed of 12 miles per hour.
Every child was given a orange cut into 8/8 pieces, Each child ate 5/8 pieces leaving 3/8 pieces each. How many kids were in their family. So each kid has 3/8 so you would add up 3/8 + 3/8 until you get a whole number of three. Or you can multiply the 3/8 by 8 or 8/1 (same thing) and get 24/8 slices which would simplify down to 3 full oranges, so there would be 8 kids because 8 x 3 = 24.
Answer:
(3 (pm) sqrt(7))/2
Step-by-step explanation:
First step: Identify a,b, and c
a=2
b=-6
c=1
Second step: Find b^2-4ac (this is called the discriminant-I will call this D)
(-6)^2-4(2)(1)=36-8=28
Third step: Find the square root of the discriminant aka sqrt(D)
sqrt(28)
Let's see if we can simplify sqrt(28)
Here is there a factor of 28 that is a perfect square? How about 4? Yep!
sqrt(28)=sqrt(4)sqrt(7)=2sqrt(7).
Fourth Step: What is -b? If b=-6 then -b=6.
Fifth step: What is 2a? 2(2)=4
So the formula is
x=(-b (pm) sqrt(D))/(2a)
or
x=(step4 (pm) step 3)/(step 5)
x=(6 (pm) 2sqrt(7))/4
Simplify
x=(3 (pm) sqrt(7))/2
*pm means plus or minus
*sqrt( ) means square root of the number that follows in the ( )
Answer:
(-1,-3)
Step-by-step explanation:
Answer:
The answer is 4 to 5
Step-by-step explanation:
The ratio 36 to 45 simplified is 4 to 5
36 divided by 9 = 4
45 divided by 9 = 5
