Answer:
194.5315427 grams
Step-by-step explanation:
The half-life of element x would be 66 years. So, after 20 years you would have:
.5^(20/66) x 240=0.810548 x 240
=194.5315427 grams of the element left ......
Answer: 1/3
Step-by-step explanation:
- Two points on this graph are (40, 80) and (70, 90). These points can be used to find the slope.
- The formula for slope is (y2-y1)/(x2-x1).
- Plugging our numbers into the formula:
- (80-90)/(40-70) = (-10)/(-30) = 1/3
Answer:
71.6 °F
Step-by-step explanation:
The formula to find a Celsius temperature from Fahrenheit is: °F = (°C × 9/5) + 32. Insert 22 for °C and solve.
Answer: 50
I If you want to get the answer correct than answer 50 trust me I just answered 50 and got it right just wanted to help YW
Answer:
$39
Step-by-step explanation:
The cost of the treat was $30, with the addition of a 10% sale tax and a 20% tip on the original $30.
So, total of (10 + 20) = 30% extra cost she has to pay on the original $30.
Hence, the total amount to be paid for the meal will be
dollars. (Answer)
