The answer is b, fine the initial speed of the ball
Answer:
~ 8m+6
Explanation
~ So first we have to expand the brackets
~ Expanding the brackets we should have: 4 times m and 4 times negative three.
~ Now re write it out: 18+4m-12+4m
~ Collect like-terms now such as all the m’s and normal numbers.
~ Collect all the m’s: 4m+4m=8m. Collect other numbers: 18-12=6
~ And now, you should have 8m+6
Answer:
Ratio [Model : Actual] = 1:16
Step-by-step explanation:
Given:
Height of model =
inches = 5/2 inches = 2.5 inches
Height of actual status =
feet = 10 / 3 feet
Find:
Ratio [Model : Actual]
Computation:
Height of actual status =
feet = 10 / 3 feet
Height of actual status = [10 / 3] x 12
Height of actual status = 40 inches
Ratio [Model : Actual] = 2.5 / 40
Ratio [Model : Actual] = 1:16
He is walking 9/40 miles per hour. But in decimal form it would be 0.225