Answer:
349.0 grams to nearest tenth
Step-by-step explanation:
After each minute there will be (100- 7.3) = 92.7 % ( or 0.927) of the element left.
Therefore after 8 minutes amount left = 640*0.927^8
= 349.0 grams answer
Answer:
C. The equation x = 50y represents this situation.
Step-by-step explanation:
Let's examine each statement given and determine if it is correct or not correct based in the information given to in the graph.
Statement A: "The point (2, 100) means that there are 100 pounds of wild rice in 2 bags."
✅This is CORRECT because from the graph, on the x-axis (number of bags), when x = 2, y on the y-axis (pounds of wild rice) is 100.
Statement B: "The data represents a proportional relationship".
✅This is CORRECT because a graph that shows a proportional relationship between x and y, has a line that cuts through the point of origin (0, 0).
Statement C: "The equation x = 50y represents this situation".
❌This is NOT CORRECT. The equation does not represent a proportional relationship between x and y. The correct equation should be y = 50x. Where 50 is the constant of proportionality. That is y/x.
Statement D: "The constant of proportionality is 50."
✅this is CORRECT because constant of proportionality = y/x = 100/2 = 50.
I think the answer is c 19
13) 2/3+4/7=26/21
14) 2* pi=6.2831.....
15)2*3=6
16)2+pi=5.1415....
18)(2)^(1/2) (2)^(1/2)=2
Answer:
159=15+9x x=16
Step-by-step explanation:
it will take Fernando 16 weeks to save up enough money