After one half life it i s 130/2 = 65 g
after another 2 half lives it will be 65*1/2^2 = 16g to nearest gram
There are 16 cups in a gallon. Which means that every 4 minutes, a gallon of tea is being poured. In an hour there is 60 minutes, so in an hour 15 gallons are being poured. Multiply that by 2 for the 2 hours the lunch will last and 30 gallons are going to be poured.
Answer: 30 gallons
Answer:
At 1.5 seconds and 2.5 seconds
Step-by-step explanation:
Because this is parabolic motion, the object will reach the height of 68 feet when it's going up AND when it's coming down. In order to find out those times, you set the h on the left side of the equation equal to 68, because h stands for height.
Set that equal to 0 and factor to solve for t:
Using the quadratic formula, we get t = 1.5 and t = 2.5
Answer:
y=4
Step-by-step explanation:
Answer:
x = 0.3
Step-by-step explanation:
AM + MN = AN
But AN = 5
Therefore it does not matter where M is
7x + 0.1 + 10x - 0.2 = 5 combine like terms on the left
7x + 10x + 0.1 - 0.2 = 5
17x - 0.1 = 5 Add 0.1 to both sides.
17x - 0.1+0.1=5+0.1
17x = 5.1 Divide by 17
17x/17 = 5.1/17
x = 0.3 Answer