Just draw three rectangles and a half of one
I need help with number 8 and 9! :) Thanks!
1 answer:
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It these triangles are similar, then the sides of the triangles are in proportion:
<em>cross multiply</em>
<em>use distributive property</em>
<em>subtract 10y from both sides</em>
<em>divide both sides by 5</em>
<em>cross multiply</em>
<em>divide both sides by 8</em>
Answer:
The problem does not work.
Step-by-step explanation:
The plane with speed of 31 mph will cover 640 miles in hours.
Now, it burns 5 gallons of gas every 3 minutes i.e. 0.05 hours.
So, it will burn in 20.64 hours gallons.
Now, the helicopter with speed of 45 mph will cover 640 miles in hours.
Now, it burns 7 gallons of gas every 5 minutes i.e. 0.083 hours.
So, it will burn in 14.22 hours gallons.
But both of them starts with only 80 gallons of fuel.
Therefore, the problem does not work. (Answer)