substitution method
Step-by-step explanation:
- use second equation
- make x subject of the formula
- put it back in the first equation
- solve to find the value of y
- substitute y value in any equation between the two.
- then you get x value
<h3>
Answer: 1075 square feet</h3>
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Explanation:
As shown in the diagram below, I've drawn a blue horizontal line to split the figure into two rectangles (smaller one up top, larger down below).
The smaller rectangle up top is 25 ft by 8 ft, giving an area of 25*8 = 200 sq ft.
The larger rectangle down below is 35 ft by 25 ft so we have an area of 35*25 = 875 sq ft.
The total area is 200+875 = 1075 square feet
Notes:
- We can write "square feet" as "sq ft" or as "ft^2" without quotes.
- The portion "5 ft", in the upper left corner, is never used.
Just divide 1372.75 by 47.5 which is 28.9
The answer is 80, because that is what you get when you subtract 100 from 180 to get the third angle.
250 miles in 5 hours can also be written as 250/5 and since you are looking for a unit rate we must make the denominator 1 so we can divide both sides by 5 and get 50/1 in other words the unit rate is
50 miles per hour