Can someone help me with these questions?? I really can't figure it out. Please help me I really need it...
I have to write an equation to represent these real-life situations in which the variable is on the left side of the equation with an operation and a number. Then solve the equation showing the steps. Finally answer the question in a complete sentence as indicated in the lesson content.
7. Anne is seven years younger than her brother, Brandon. Anne is 23. Let B represent Brandon’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.
9. Mary scored 36 points, which is half as many points as Lashawna scored. Let L represent the points Lashawna scored.
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.
This is called "variable abuse"
There is absolutely no need to introduce variables if the whole process takes only one step
e.g. #8, all you have to say is
Cougar's score = 72-15 = 57
(I suppose you want C = 72-15 = 57)
every one of your problems takes only one arithmetic step to solve
Okay thank you! If i work the other ones out would you mind checking them for me?
Sure, I can help you with these questions!
Let's break down each question and solve them step by step:
7. Anne is seven years younger than her brother, Brandon. Anne is 23. Let B represent Brandon’s age.
To write the equation, we know that Anne's age is 7 years younger than Brandon's age. So, the equation would be: B - 7 = 23.
To solve the equation, we need to isolate the variable B.
Adding 7 to both sides of the equation, we get: B = 23 + 7.
Simplifying it gives us: B = 30.
So, Brandon's age is 30.
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 write the equation, we know that the Cougars' score (C) is 15 points less than the Tigers' score (72). So, the equation would be: C = 72 - 15.
To solve the equation, we subtract 15 from 72.
C = 57.
So, the Cougars' score is 57.
9. Mary scored 36 points, which is half as many points as Lashawna scored. Let L represent the points Lashawna scored.
To write the equation, Mary's score is half of Lashawna's score. So, the equation would be: L / 2 = 36.
To solve the equation, we multiply both sides by 2.
L = 36 * 2.
Simplifying it gives us: L = 72.
So, Lashawna scored 72 points.
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 write the equation, we know that the number of cookies (c) is equal to the number of dozens (20) times 12 (since there are 12 cookies in a dozen). So, the equation would be: c = 20 * 12.
To solve the equation, we multiply 20 by 12.
c = 240.
So, Phoebe has ordered 240 cookies.
I have explained the steps to solve the equations. If you have any further questions, feel free to ask!