Answer:
x = 4.31 and y = -1.23 (to the nearest hundredth).
Step-by-step explanation:
y = 16 - 4x
3x + 4y = 8
Substitute y = 16 - 4x in the second equation:-
3x + 4(16 - 4x) = 8
3x + 64 - 16x = 8
-13x = 8 - 64 = -56
x = -56 / -1 3 = 4.308
Plugging this value into the first equation:-
y = 16 - 4(4.308)
= -1.23
The current grading rate is
(30 minute)/(5 papers) = 6 minutes/paper.
She has 3 hours (or 180 minutes) to grade 35 papers.
She now has 180 - 30 = 150 minutes left, and she has 35- 5 = 30 papers left.
The remaining grading rate is
(150 minutes)/(30 papers) = 5 minutes/paper
Therefore she must work at 1 minute/paper faster to complete grading 35 papers in 3 hours.
Answer: She should work faster at an increased rate of 1 minute per paper.
Not sure how to do it in this form but in slope intercept form for example if the slope was -4/3 the perpendicular would be 3/4 it’s the negative reciprocal of the answer
C because u have to add all the sides
Answer:
um
Step-by-step explanation:
