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Writing Expressions

Writing algebraic expressions from a story context

QuestionAnswer
seven divided by twice a number 7 ÷ 2n
five more than twice a number 2 2n + 5
three times a number decreased by 11 3x - 11
An electrician charges $45 per hour and spends $20 a day on gasoline. Write an algebraic expression to represent his earnings for one day. Let x represent the number of hours the electrician works in one day. 45x - 20
two times the difference between n and five 2 (n-5)
5 less than the product of 3 and a number 3w – 5
4 times the sum of a number and 7 4(y + 7)
Mrs. Gaddie loves dogs. Her friend Anna-Marie has three less than twice as many as Mrs. Gaddie. How many dogs does Anna-Marie have if Mrs. Gaddie has 2 dogs? 2d -3
Two times the product of a and b divided by 5 Two times the product of a and b = 2ab Two times the product of a and b divided by 5 = 2ab/5
Product of p and q added to 7. pq + 7
x more than two-third of y x + (2/3)y
Half a number x decreased by 3. Half a number x = (1/2) x decreased by 3 = - 3 (x/2) - 3
Sum of numbers m and n decreased by their product Sum of numbers m and n = m + n decreased by their product = -mn (m + n) - mn
Double the sum of one third of a and m. one third of a and m Double = multiply by 2 2 [(1/3)a + m]
the difference of Five and a number 5 - n
A family membership at a tennis club costs a flat fee of $150, plus $25 per person. Let n stand for the number of people. 25n + 150
What is equivalent to 5(8 − x) ? 40 – 5x
The Sojourn family went on a vacation. They started with $2000. If they spent $150 each day, which expression represents how much money they had after x days? 2000 - 150x
A radio station manager has $1000 in prize money to give away. She will give away $50 in prize money each hour. A. 50x = 1000
Created by: Jeaton
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