Mathematics, 15.12.2019 04:31 bcox32314
1) moira bought $.65 worth of stamps. she paid for them with 15 coins. what coins did she use?
2) an office building has 10 floors of the same height. how many times as far from the ground is the ninth floor than the third floor?
3) the difference between twice a number and half that number is 30. what is the number?
4) lisa sold costume jewelry at a bazaar. the first hour she sold 2 bracelets and 3 rings for a total of $36.00. later a customer bought 2 rings and paid $12.all bracelets were prices the same. all rings were prices the same. how much did a bracelet cost?
5) tara wants to weigh her three stuffed animals. they will only fit on the scale two at a time. together addie and missy weight 18 ounces. missy and corky weigh 22 ounces, and addie and corky weigh 12 ounces. how much does each animal weigh?
6) use any of the digits 1, 3, and 9 and the operation signs +,- ,x,, to write all the whole numbers from 1 through 13. each digit can be expressed only once in each example. you can use other digits in the expression, but you must also use a 1, 3, or 9 at least once in each expression.
example: the first three (3) have some examples for you.
number
a) 1
expression
2 - 1 or 3 - 2
b) 2
3 - 1
c) 3
3 x 1 or 9 3
d) 4
e) 5
f) 6
g) 7
h) 8
i) 9
j) 10
k) 11
l) 12
m) 13
Answers: 1
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1) moira bought $.65 worth of stamps. she paid for them with 15 coins. what coins did she use?
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