Answer:
8 inches
Step-by-step explanation:
Step 1:
2 : 10 miles Ratio Inches to Miles
Step 2:
2 : 10 = x : 40 Equation
Step 3:
10x = 80 Multiply
Step 4:
80 ÷ 10 Divide
Answer:
x = 8
Hope This Helps :)
Answer:
Step-by-step explanation:
Well, I really don’t like graphic approaches in math, so hear ya go a formula:
Although there are easier ways that work for some quadratics, but this formula works for them all. (It is atached, have a look)
So,
( -(-2)+- square root of ((-2)^2-4(1)(-40)) ) / 2(1)
Note that for a hear I use one, since there is nothing in front of x.
( 2 + (12.8) ) / 2 < with plus
( 2 -(12.8) ) / 2 < with minus
X = 7.4
Or
X = -5.4
(Quad equations have 2 answers)

We're going to change one unit at a time. Let's start with inches to feet. There are 12 inches in 1 foot. Divide 240 by 12 or multiply by 1/12.

Next, let's do the time using the same idea. Remember that there are 60 minutes in 1 hour.

Answer: 1200 feet per hour
Hope this helps!