Trust me these are the correct answers :)
Answer:
Part A: -100x2 + 15,750x − 31,100 ≥0
Part B: 2x2-315x+622 ≤0
Part C: (2x-311)(x-2) ≤0
Part D:2 ≤ x ≤ 155.5
Part E: We know x = number of $2 increases. So, from the compound inequality, 2 ≤ x ≤ 155.5, we can conclude that the minimum possible value of x is 2.
Part F: 29
Answer:
80
Step-by-step explanation:
320 divided by 8 is 40 and 40 x 2 is 80
Answer:
+30 +-25
Savings is positive
Buying is negative
Step-by-step explanation:
+30 saved
-25 to buy
+30 +-25
Savings is positive
Buying is negative
Answer:
y=1/4x+2.5
Step-by-step explanation:
Find rise/run
rise/run=1/4
Look for the point
(2,3)
Plug into y-y2=m(x-x2)
y-3=1/4(x-2)
Solve
y-3=1/4x-0.5
y=1/4x+2.5
