Answer:
Use what you used for the first one and you should get the right answer.
Step-by-step explanation:
If u multiply the first equation by -4, u get -2x - y = -20
and when u add the 2 equations..
-2x - y = -20
2x + 3/8y = 5
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0 - 5/8y = -15.....u notice that the x terms r eliminated.
Answer:
the shorter stick is 45 inches
Step-by-step explanation:
you divide 270 by 6 giving u the length of the shorter piece
Answer: 0.75
Step-by-step explanation:
It is easier to divide if you get rid of the decimal, divide 375/5, and then add the decimal back.
100/5 = 20
4 x 20 = 80
1 x 20 = 20
answer
<span>100 in ratio 4:1 = 80:20</span>