Answer:
the top and bottom ones
Step-by-step explanation:
She took a total of 60 minutes
she answered both mulitiple choice and extended response in the total time which is 60 minutes
she took 2 minutes on rach multiple choice question and 6 minutes for the extended response
let x=number of multiple choice questions
let y=number of extended response questions
we can deduce that
total time =x*2+y*6
60=2x+6y
also we can deduce
20=x+y
since 20 ia the sum of multiple choice and extended response
for part 2 we just solve the system of equations
60=2x+6y
20=x +y
lets multiply the second equation by 2 so we can get rid of x
60=2x+6y
40=2x+2y
subtracting the two equations from each other to yields
20=0 +4y
y=5
to get x we substitute in one of the equations we derived from question 1
x+y=20
substituting y for its value we get
x+5=20
x=15
Area for a rectangle is height * width. Therefore, the area of the wall would be 16.5 * 8.625 = 142.3125. Thus, Cameron's answer is not reasonable since the decimal place is in the wrong place.
Answer:
Mr. Kelner is going to save $60
Step-by-step explanation:
Answer: x = 45
simplify both sides of the equation.
3/25x + -14/5 = 13/5
add 14/5 to both sides.
3/25x = 27/5
multiply both sides by 25/3.
x = 45
