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given:
= cost of Brazilian coffee in mixture
= cost of Venezuelan coffee in mixture
= cost of mixture
Now I can rite these equations:
(1)
(2)
Multiply both sides of (2) by and
subtract from (1)
and, since
288 kg of Brazilian coffee and 96 kg of Venezuelan coffee are needed
Answer:
-13
Step-by-step explanation:
Twice a number is 2h (h is the variable) so the equation is 12-2h=-14 and - 13 times 2 is -26 so the equation is now 12-26=-14
Answer: 33.6 min
Volume = L*W*H = 9 * 13 * 14 = 1638 in^3
Vol2 = 21 * 25 *35 = 18375 in^3
18375/1638 = 11.2 times bigger, so 3min * 11.2 = 33.6 minutes
yes
