hey i am having trouble can someone help...
1.)Water flows from a hose at 15 gallons a minute. How long does it take to fill up a 300 galllon pool?
2.) There are 26 shoes in a closet. Some of the shoes are nike the rest are Adidas. The nikes cost 50 and the adidas are 60...the total price of all shoes are 1400. Find the number of nikes and adidas.... HELLPpPP!
2007-10-07 11:42:46 · 12 answers · asked by lovboi98765 1 in Science & Mathematics ➔ Mathematics
first one-use proportion
answer: 20 MINUTES
second one: i dont know. sorry
2007-10-07 11:47:13 · answer #1 · answered by nerddd 4 · 0⤊ 0⤋
1) 300 gallons * 1min / 15 gallon = 20 min
let x be the number of shoes that are nike
there are 26 shoes, then 26 - x is the number of shoes that are Adidas
the nikes cost 50 dollars each
the Adidas cost 60 dollars each
the total is 1400 dolloars
50x + 60(26 - x) = 1400
50x + 1560 - 60x = 1400
-10x = -160
x = 16
16 nikes and 10 Adias
2007-10-07 11:52:13 · answer #2 · answered by 7 · 0⤊ 0⤋
1. 20 minutes
2. Adidas- 10 Nikes- 16
2007-10-07 11:51:51 · answer #3 · answered by megabossy_91 2 · 0⤊ 0⤋
300/15 = 20 minutes
a = adidas
26-a =nike
60a +50(26-a) = 1400
60a +1300 -50a = 1400
10a = 100
a = 10 = adidas
26-10 = 16 = nike
2007-10-07 11:49:11 · answer #4 · answered by ironduke8159 7 · 0⤊ 0⤋
properly enable's use variables to characterize both integers. we will use L for the lesser integer and provided that the different integer is 27 better than L, we can write it as L + 27. So all of us understand that both one of them at the same time = 80 5, enable's make an equation. L + L + 27 = 80 5 2L + 27 = 80 5 2L = 80 5 - 27 2L = fifty 8 2L / 2 = fifty 8 / 2 L = 29 The lesser integer L is 29 and the better integer (L + 27) = fifty six.
2016-10-20 05:51:00 · answer #5 · answered by ? 4 · 0⤊ 0⤋
2) x= nike shoes
y = addidas
x +y =26
50x + 60y = 1400
x= 26 - y
50(26 - y) + 60y =1400
1300 - 50y + 60y = 1400
-50y + 60y =1400 - 1300
10y = 100
y = 10
therefore there are 10 addidas
and 26 - 10 = 16 nikes
2007-10-07 12:04:58 · answer #6 · answered by @YD@y 4 · 0⤊ 0⤋
i think number one is 12 min and number 2 is 24 nike's and 2 adidas
2007-10-07 11:49:23 · answer #7 · answered by Rachel 2 · 0⤊ 0⤋
1: 20 minutes (Do 300 divided by 15 cause that will tell you how many minutes since it takes)
2: I don't know.
2007-10-07 11:49:42 · answer #8 · answered by Sudman M 2 · 0⤊ 0⤋
number one is= 300/15=20 minutes
number two =make two equations as in 50x+60y=1400
2007-10-07 12:14:25 · answer #9 · answered by Anonymous · 0⤊ 0⤋
first one is to divide 15/gallons a minute into 300gallon which is 20 minutes.
2) im stomped
2007-10-07 11:47:33 · answer #10 · answered by THE GOOD NIGHT 6 · 0⤊ 0⤋