7 rollercoasters because 4 shows plus 3 more rolercoasters equal 7 and 4 shows .It takes 5 minutes to ride on the rollercoaster plus the estimated 30 minute wait equals 35 and 35*7=245 and it takes 25 minutes to watch show and 25*4=100 and 245+100=345 so he can ride 7 rollerecoasters and 4 shows in 345 minutes.
The relative frequency for the class with lower class limit 31 is 8.57%.
<h3>How to calculate the frequency?</h3>
It should be noted that the lowrr class frequency is 31 in this case.
Therefore, the relative frequency for the class with lower class limit 31 will be:
= 3/(6+4+4+9+3+9) × 100
= 3/35 × 100
= 8.57%
Therefore, the relative frequency for the class with lower class limit 31 is 8.57%.
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X = 1st integer, y = 2nd integer, z = 3rd integer
y = 2x
z = 2y......z = 2(2x)...z = 4x
y = x + 17
2x = x + 17
2x - x = 17
x = 17
y = 2x
y = 2(17)
y = 34
z = 4x
z = 4(17)
z = 68
and the sum would be : 17 + 34 + 68 = 119
