Distributive property
3(x+3)
3*x + 3*3
3x+9
divide by three to simplify
x + 3
if you’re supposed to solve it, subtract three
x = -3
Answer:
1 3/8 pints
Step-by-step explanation:
(2 3/4 cups) × (1 pint)/(2 cups) = 1 3/8 pints
_____
Units conversion is conveniently done using a fraction that is equal to 1: its numerator and denominator express the same quantity, but in different units. The units are chosen so that after unwanted units are cancelled, you end up with the desired units.
a. define variables for the quantities that are changing (be specific).
We define variables:
t = time in second
d = distance traveled
The variables that are changing are t and d.
As the time increases, the distance decreases.
b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?
It means that for every second that passes, Bob walks 9.3 feet.
c. consider the formula d = 4320 - 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent?
For this case we have:
t = represents the time in seconds
9.3t = represents the distance traveled by Bob
d = represents the distance Bob must travel to get to the bus stop.
So r is a number that when you add to t it will increase so its
T + r
