Answer: A C E
Step-by-step explanation:
Let x equal the cost of one muffin and y equal the cost of quart of milk
8x+2y=18
3x+y=7.50
See if you can solve it from there. If not let me know
Answer:
The average rate of change for this sequence is 1
Step-by-step explanation:
The average rate of change is calculated as the slope of the line joining the end points of the sequence.
In this case the end points are;
(-.5, 2.5) and (1,4)
We simply calculate the slope using the gradient formula;
Change in y / change in x
(4 - 2.5)/(1 - -0.5) = 1
Answer:
Step-by-step explanation:
Part A:
Mark did not round to the nearest hundreds, he rounded to the nearest tens.
Option A (Incorrect):
271 and 582 are normally not rounded down, unless we are using limits coming from the left and a unique equation.
Option B (Incorrect):
271 as the same problem as option A, but 582 rounding to 600 is correct. It doesn't make sense to round both numbers differently, unless stated.
Option C (Incorrect):
271 rounding to 300 is correct, but 582 is not normally rounded down to 500 unless we are using limits coming from the left and a unique equation. Unless stated, don't round both numbers differently.
Option D (Correct):
271 rounded to 300 and 582 rounded to 600 looks correct for rounding to the hundreds.
Part B:
There are two ways to solve this question:
One way:
271 + 582 = 853
Round 853 to the nearest hundred for 900
(Note: Round 853 to the nearest tens for 850.)
Second way:
271 + 582
Round Numbers:
300 + 600
= 900
