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.
Hi There! :)
<span>Which numbers should be multiplied to obtain 175^2 − 124^2?
</span><span>51 and 299</span>
Answer:
20909.09 grams
Step-by-step explanation:

= 230 grams / 11 grams × 1000 grams = 20.90909... × 1000 = 20909.09 grams