four red boxes and two black boxes cost $40. Five red boxes cost $20. All red boxes cost the same. All black boxes cost the same
. What is the ratio of the cost of a red box to the cost of a black box.
1 answer:
The ratio of red to black is 1:3
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D = - 1.6
this is the answer simplified
Volume= 301.6
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You can use the pythagorean theorem to find the length of RT for example:
a^2+b^2=c^2
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