To set up an equation in a math problem, you need to carefully analyze the given information and determine the relationship between the quantities involved.
Let's go through each question and show how the equations can be set up.
7. Anne is seven years younger than her brother, Brandon. Anne is 23. Let B represent Brandon’s age.
To set up the equation, we can express the relationship between Anne's age and Brandon's age as follows:
B = A + 7, where B represents Brandon's age, and A represents Anne's age.
8. Last Friday, the Cougars lost to the Tigers in basketball by 15 points. The Tigers scored 72 points. Let C represent the Cougars' score.
To set up the equation, we can express the difference between the Cougars' score (C) and the Tigers' score (72) as the given value of 15:
C = 72 - 15, where C represents the Cougars' score.
9. Mary scored 36 points, which is half as many points as Lashawna scored. Let L represent the points Lashawna scored.
To set up the equation, we can express the relationship between Mary's score (36) and Lashawna's score (L) as follows:
L = 36 * 2, where L represents Lashawna's score.
10. Joey owns a small bakery, and today Phoebe has ordered c cookies. If Joey boxes the cookies by the dozen and has packed 20 boxes, how many cookies has Phoebe ordered? Let c represent the number of cookies.
To set up the equation, we can express the total number of cookies (C) as the product of the number of dozens of cookies (20) and the number of cookies per dozen:
C = 12 * 20, where C represents the total number of cookies.
By setting up these equations, you can provide a clear representation of the relationship between the quantities involved in the math problems.