The Boardman family walked two over five of a mile in two over seven of an hour. What is their unit rate in miles per hour?
1 answer:
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Answer:
$1.47.
Step-by-step explanation:
We have been given an equation that can be used to predict the price per pound of white bread where x is the number of years since 1983.
Let us find the number of years from 1983 to 2015 by subtracting 1983 from 2015.
Let us substitute x=32 in our given equation to find the price of per pound of white bread in the year 2015.
Therefore, the price of per pound of white bread in the year 2015 will be $1.47.
Answer:
x = 57
Step-by-step explanation:
1. Look at the expression (x + 22). It's measurement the upper side of the lines. We know that if we add up all sides, we will get a full circle, or a value of 360. We know that if I extend the blue line to the left on the upper parallel line, it would equal 180 degrees.
We can express this as x + 22 = 180. Now lets look at the bottom equation, notice that the 2x - 13 is the <em>missing side </em>of x + 22. So we know:
x + 22 + 2x - 13 = 180
3x + 22 - 13 = 180
3x + 9 = 180
3x = 171
x = 57
2. We can check this by plugging it into our formula. x + 22 and 2x - 13. so 57 + 22 = 79 and 2(57) - 13 = 101. Add them together: 79 + 101 = 180.
3. We know this is true because both angles combined will be to form 180 degrees. For a better understanding, view the image I sent you. 1 = 3, and 4 = 2. <em>Opposite angles are equal. </em>In your equation, we have 3 and 8. we KNOW that <em>8 = 2</em>. And we also know that adding up 2 + 3 MUST equal 180 degrees.
I hope this helps!
