I believe that is the associative property of addition. Hope it helps! :) If you could vote my answer as the brainliest, that would be awesome! :)
9514 1404 393
Answer:
40.5 ft
Step-by-step explanation:
Solve for the time at which the balls meet, then find the corresponding height.
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The balls will meet at the height such that the two values of h are the same.
-16t^2 +56t = h = -16t^2 +156t -248
0 = 100t -248
t = 2.48
Using the first equation to find h, we have ...
h = t(-16t +56) = 2.48(-16·2.48 +56) = 40.4736
The balls meet at a height of about 40.5 feet.
Answer:
k=-2
Step-by-step explanation:
Using substitution to find what you're missing, (in this case k) is when you plug each letter into the other equation:
-4k+3=3k+17
So now solve for k:
subtract 3 from both sides...
-4k=3k+14
subtract 3k from both sides to combine with -4k...
-7k=14
divide -7 from both sides...
k=-2
The person whose walk is longer is Erica.
Erica's walk is 8/9 times longer than Erica's walk.
<h3>Whose walks the longer distance?</h3>
In order to determine who walked the longer distance, we would convert the fractions to percentages.
3/4 becomes 75%
2/3 becomes 66.7%
Erica's percentage is smaller, thus, she walks a longer distance.
Jordan's walk is 8/9 times longer
(2/3 ÷3/4) (2/3 x 4/3 = 8/9)
To learn more about percentages, please check: brainly.com/question/25764815
