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teetee7561
25.06.2019 •
Mathematics
Ramon was studying pond life at doyle park. in two hours he counted 4 more frogs than turtles. the number of crayfish he counted was three more than twice the number of turtles. in total, he counted 54 turtles and crayfish. how many frogs were there?
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Ответ:
21
Step-by-step explanation:
Let Ramon counted 'x' no. of turtles,
therefore, according to the question, he counted (2x + 3) crayfish.
It is given that he counted 54 turtles and crayfish.
So, our equation becomes, x + 2x + 3 = 54
or, 3x + 3 = 54
or, 3x = 51
or x = 17
So, in the pond there were 17 turtles and 17*2 + 3 = 37 crayfishes.
But according to the question there were 4 more frogs than turtles.
So total no. of frogs were,
17 + 4 = 21
Hope it helps!!!
Ответ:
You know that you add $3 for every video. You start off with one video for $8. Then you add 3 every time. So for every video you add $3. So 2 videos would be $11. 6 videos would be $23. 7 would be $26. 8 would be $29. 9 would be $32. 10 would be $33. 11 would be $36. 12 would be $39. 13 would be $42. 14 would be $45. Then fifteen would be $48. The equation would be 48 = 3x + 8. This is because you start off with 8 dollars for one video and add 3 for each. Then end product would be $48 after 15 videos.