Mathematics, 12.11.2019 08:31 xaviuzc
Zach and roger spent a total of 69 hours building a treehouse. roger worked 9 hours less than twice the number of hours zach worked. which system of equations can be used to determine the number of hours zach worked, x, and the number of hours roger worked, y?
a.
x + y = 69
2x + y = 9
b.
x - y = 69
y = 2x + 9
c.
x + y = 69
y = 9x - 2
d.
x + y = 69
y = 2x - 9
Answers: 3
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I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis
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Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?
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On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?
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