If you don't understand websites like ask.com are not good to use, so read a book at the public library, that should help
Q 5) No. of boys = 20
Answer:
Q 6) Total time taken to answer both the quizzes = 90 minutes
Step-by-step explanation:
Q 5.
Let the number of boys = x
Therefore, number of girls = x - 5
Since,
No. of boys + No. of girls = 35
hence,
x + x- 5 = 35
2x-5 = 35
2x = 35 + 5
2x = 40
x = 40/2
x = 20
Hence 20 boys participated in the activity.
Let the time taken to answer history quiz= x min
Therefore, time taken to answer geography quiz = (x + 30) min
According to the given information:
x = 1/2(x + 30)
2x = x + 30
2x - x = 30
x = 30 min
Hence, x + 30 = 30 + 30 = 60 min
Total time taken to answer both the quizzes = 30 + 60 = 90 minutes
Answer:
1/6 cause there is a 1 in 6 chance each time you roll the die
Step-by-step explanation:
Answer:
21.897 to the nearest hundredth is 2.19
Answer: So basically i am nott sure what you mean but let me try to help.
Step-by-step explanation:
try this video if you still need help
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