Mathematics, 09.09.2021 16:40 raam360
The given rates are in hours per gallon. If we rewrite them in terms of gallons per hour, we have ...
... Jenny + Penny = 1/2 . . . . gallon per hour
... Penny + Lenny = 3/5 . . . gallon per hour
... Jenny + Penny + Lenny = 1 . . . gallon per hour
Subtracting the 2nd equation from the last, we have ...
... (Jenny +Penny +Lenny) -(Penny +Lenny) = (1) -(3/5)
... Jenny = 2/5 . . . . gallon per hour
It will take Jenny 5/2 = 2.5 hours to eat a gallon of ice cream by herself.
Answers: 2
Mathematics, 21.06.2019 12:30
Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.
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Mathematics, 21.06.2019 16:20
Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?
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Mathematics, 21.06.2019 19:00
Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1
Answers: 2
The given rates are in hours per gallon. If we rewrite them in terms of gallons per hour, we have .....
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