Answer:
4
Step-by-step explanation:
1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);
2. using the previous item it is possible to write the next equation:
5(x+20)=4*20+10*x; ⇒ x=4.
3. the required mass is 4 pounds.
Answer:
Since you want me to answer 3 lb 1 oz - 1 lb 15 oz instead, the answer is 18 oz
Step-by-step explanation:
speed is 45 miles per hour. 135/45=3, so the answer is 3hours (A)
Answer: b = -6
Step-by-step explanation: First add 10 to both sides to get -3b=18, then divide by -3 to get b = -6.
Hope this helped!
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