Answer:
And solving for x we got:
And replacing for x we got:
And for the cost would be:
Step-by-step explanation:
Assuming the following info corrected :Omar will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $59 and costs an additional 0.11 per mile driven. The second plan has an initial fee of $52 and costs an additional $0.15 per mile driven
For this case we know that the first plan has an initial fee of $59 and costs an additional 50.11 per mile driven and the second plan has an initial fee of $52 and costs an additional $0.15 per mile driven.
So we can set up the following equations for each cost
With c1 the cost of the plan 1 and x the number of miles
With c2 the cost of the plan 2 and x the number of miles
We can set equatl the two costs:
And replacing we got:
And solving for x we got:
And replacing for x we got:
And for the cost would be:
Answer:
136 is the area
Step-by-step explanation:
if you multiply 17 times the number of sides which is 8 you would get 136 for the perimeter does it give an other numbers?
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-3/4 + 2 3/4
When dealing with a problem like this, it’s easiest to reorder the terms. So we’d say...
2 3/4-3/4=2
Then we’re really just subtracting 3/4 from the original number and our answer is 2.
First, let’s break this down. What exactly are we looking at here? Well, Daisy measured the heights of 20 plants (in cm). The table, under Frequency, shows the # of plants that fit within a certain height range, shown on the left under Height of Plants (h).
Now, it says to take the midpoints of each group to figure out an estimate of the mean height. To find the mean, you add up all the totals and divide it by the # of items. So, let’s go through each row.
Midpoint of 0-10 is 5, and Frequency is 1, so that gives us 5.
Midpoint of 10-20 is 15, Frequency is 4, and 15x4=60.
We continue this with the other rows by finding the midpoint & multiplying the midpoint by the frequency (if the frequency is greater than 1). This gives us the numbers:
175 (25x7)
70 (35x2)
135 (45x3)
165 (55x3)
Now, we add these all together.
5+60+175+70+135+165=610
Finally, we divide 610 by the # of items (remember, there are 20 plants so we divide by 20) and 610/20 is 30.5.
FINAL ANSWER:
Thus, if I calculated correctly (which I hope I did lol), our estimate for the mean height of a plant is 30.5 cm!