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lilyclairehutson
22.11.2019 •
Mathematics
How do you do number 15 and 17? ?
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Ответ:
m = Miguel Indurian titles amount l = Lance Armstrong titles amount
they both won titles to the tour de france, if we add all together, they sum up to 12 for both of them
so.. whatever "m" and "l" are, we could say that m + l = 12
now... Miguel won 2 fewer than Lance, so, whatever "l" is, m = l - 2
thus
solve for "l", to see how many Lance won
how many did Miguel win? well, m = l - 2
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17)
c = mgs amount in 12oz cup of regular coffee at starbucks
d = mgs amount in 12oz cup of regular decaffeinated coffee at starbucks
we know the regular coffee cup, has 13 times more than the decaf, same 12ouncer
thus whatever "c" and "d" are, we know that c = 13d
both 12ouncers put together, yield 280mgs of caffeine
so, one could say that whatever "c" and "d" are, c + d = 280
thus
solve for "d" to see how much is in the decaffed cup
the regular coffee cup? well c = 13d
Ответ:
She has 15 - 5.50 = 9.50 left after she buys the notebook
She needs to save 7.75
Soshe can spend 9.50 - 7.75 = 1.75
Solet N be the max number of packages of cookies she can buy and we have that
.25N ≤ 1.75 divide both sides by .25
N ≤ 1.25 /.25
N ≤ 7
She can buy up to 7 packages of cookies
Hope this helps you!! :D