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Mathematics, 15.10.2019 07:30 leo4687

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1. when using order of operations to evaluate an algebraic expression the last step is:
a. multiply or divide
b. evaluate all exponents
c. simplify expressions inside parentheses
d. do all additions or subtractions from left to right

2. define the variable in the following situation:
the cost is 3 times the number of t-shirts bought. the total cost of t-shirts is $27.00.
a. cost
b. number of t-shirts
c. 3 times
d. total

3.if the sum of three consecutive integers is 60, what is the smallest integer?
a. 18
b. 19
c. 20
d. 21

4.at the olympics, the u. s. won 14 more gold than silver medals in sydney, australia in 2000. they won a total of 64 gold and silver medals. how many gold medals did the u. s. win?
a.36
b.37
c.39
d.41

5.solve for b.
ax + by = c

a. b = ax - c
b. b = (c - ax)/y
c. b = c - axy
d. none of the above

6.the circumference of a circle is expressed by the equation c = 2r. find the radius r when c = 50.24. use 3.14 for .
a. r = 7.6
b. r = 8
c. r = 8.3
d. r = 9

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