ok so a bank teller is counting his money and notices that he has an equal number of tens and twenties. he also has $147 in other bills. he has $1,167 in all. how many tens and twenties does he have?
please show ur work
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2007-12-02 11:06:52 · 3 answers · asked by Cupid Cleo 2 in Science & Mathematics ➔ Mathematics
Let x be the number of tens he has
Then the number of twenties he has is also x
From the problem we have that:
10x + 20x + 147 = 1167
Solve for x:
30x = 1020
x = 34
So he has 34 tens and 34 twenties.
2007-12-02 11:13:22 · answer #1 · answered by whitesox09 7 · 1⤊ 0⤋
n$10.00 + n$20.00 + $147.00 = $1167.00
=> n$(10 + 20) = $1167 -- $147
=> n$30 = $1020
=> n = $1020/$30 = 34
so 34 tens and 34 twentys.
verify it : 34*10 + 34*20 + 147 = 340 + 680 + 147 = 1167
2007-12-02 19:17:28 · answer #2 · answered by sv 7 · 0⤊ 0⤋
30x = 1020 so x= 34 tenth
2007-12-02 19:16:04 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋