X=100
360-63= 297
297-80=217
217-100=117
117/3=39
Answer:
A and B and E
Step-by-step explanation:
because u always double check
Step-by-step explanation:
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<em>MARK</em><em> </em><em>ME</em><em> </em><em>AS</em><em> </em><em>A</em><em> </em><em>BRAINLI</em><em>E</em><em>ST</em>
Answer:
2.86 quarts ( approx )
Step-by-step explanation:
Given,
The initial quantity of the Mr. Gittleboro's radiator that contains 30% antifreeze = 10 quarts,
Let x quarts of pure antifreeze replaced x quarts of Mr. Gittleboro's radiator to bring it up to a required 50% antifreeze,
So, the quantity of 30% antifreeze radiator after drained off x quarts = (10-x) quarts
Also, the quantity of final antifreeze radiator 50% antifreeze = 10 quarts
Thus, we can write,
30% of (10-x) + 100% of x = 50% of 10
30(10-x) + 100x = 500
300 - 30x + 100x = 500
300 + 70x = 500
70x = 200
x = 2.85714285714 quarts ≈ 2.86 quarts
No it does not form a proportion.
Proportion = equal
3 * 8 = 24
4 * 8 = 32 not 18
