You need to know the order of operations (PEMDAS)
Parentheses
Exponents
Multiplication AND Division
Addition AND Subtraction
So look at the equation. Are there exponents? No. Are there parentheses? No. What about multiplication and division? Yes, so you do these first.
3×6=18
So now you have 3-18+3
Now you have to do addition and subtraction (Left to Right)
3-18=-15
Now you have -15+3
-15+3=-12
-12 is your answer.
Answer:
Charles is incorrect
Step-by-step explanation:
Lupe bought 8 pounds of pretzels for $18, meaning that she bought them at a unit rate of $2.25 per pound. Charles bough 6 pounds of pretzels for $15, meaning he bought them at a unit rate of $2.50 per pound. Even though Charles paid less, he didn't get the better deal because he paid more per pound than Lupe did.
Hi! if you’re taking a quiz, from what i’ve experienced, the numbers will change every time you retake the question. this helps you to understand HOW to get the answer, rather than just memorising it. from there you just need to work out how to do the maths that’s presented to you. i hope this helps!
Answer:
3rd one. is right
Step-by-step explanation: