1). Total cost for a rental = $12 just to talk to them + $8 per hour .
$44 = 12 + 8 (number of hours)
32 = 8 (number of hours.
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2). 333 = 6 x (number of students on each bus) + 9 mores students
324 = 6 x (number of students on each bus) .
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3). If all 3 numbers were the same number,
then each one would be 1/3 of 138. That's 46 .
Take 1 away from one of the 46s and add it on to another 46 .
Their sum is still 138, but now you have 3 consecutive numbers.
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4). $150 = cost of 6 books + $12 left over.
$138 = cost of 6 books.
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5). If all three numbers were the same number,
then each of them would be 1/3 of 84. That's 28.
Take 2 away from one of the 28s, and add it onto another one.
Their sum is still 84, but now you have 3 consecutive even numbers.
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6). Keith has 45 cards today.
This morning, before his dog ate any of them, he had 90.
That was after he bought 6 new ones.
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7). Sandy has 14 comic books.
Before she bought 6 new ones, she had 8 .
That's the half she had left after she sold half of them.
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8). Sally has $11 now.
Before she earned $9 washing the car, she had $20 .
That's the half she had left after she spent half at the movies.
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9). Fred spent $31 for a soft drink and 7 candy bars.
$3 of that was for the drink, so the 7 candy bars cost $28 .
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10). If all three numbers were the same number, then
each one would be 1/3 of 105. That's 35 .
Take 2 away from one of the 35s and
add it onto another one.
They still all add up to 105, but now you have
three consecutive odd numbers.