Let x be the number of weeks; therefore, the two linear equations are

Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.
Solving by substitution. Set T=C, then

Thus, substitute the value of x=3 into the first equation,

Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.
Answer:
18/25
Step-by-step explanation:
=54÷375÷3=18/25
=18/25
Answer:
864ft^3
Step-by-step explanation:
Divide the diameter by 2 to get the radius
12 / 2 = 6
Then solve the volume equation using 3 for pi.
4/3 * 3 * 6^3
4 * 6^3
4 * 216 = 864
Answer:
When given 2 sides of a triangle, the third side must be:
Greater than the difference of the other 2 sides AND
less than the sum of the other 2 sides.
So side "x" must be greater than
(8 -5) and less than (8 +5) or
3 < "x" < 13
Source: http://www.1728.org/trianinq.htm
Step-by-step explanation: