Mathematics, 14.11.2019 07:31 insomniacnana2
Two large and 1 small pumps can fill a swimming pool in 4 hours. one large and 3 small pumps can also fill the same swimming pool in 4 hours. how many hours will it take 4 large and 4 small pumps to fill the swimming pool.(we assume that all large pumps are similar and all small pumps are also similar.)
Answers: 3
Mathematics, 21.06.2019 14:00
You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣
Answers: 2
Mathematics, 21.06.2019 23:00
I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )
Answers: 1
Mathematics, 21.06.2019 23:30
Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?
Answers: 1
Two large and 1 small pumps can fill a swimming pool in 4 hours. one large and 3 small pumps can als...
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