2x^2+9x-6 i found this by subtracting 3x^2+7x from the other equation
Answer:
true
Step-by-step explanation:
PEMDAS order
parenthesis->exponents->multiplication & division->addition & subtraction
Answer:
15x + 40 = 115
We set the equation to 115 because the total cost is $115.
We add the "+ 40" because of the $40 to rent the trailer for the day.
The 15x is because it represents the miles per hour (x) times the number of hours.
The number of hours times the charge per mile, plus the $40 to rent it, will equal $115.
Hope this helps!!
120/4 = 30
120 x 2 = 240
240 + 30 = 270
270 grams of flour were used