Answer:
m = E/c²
Step-by-step explanation:
E = mc²
mc² = E
Divide both sides by c².
m = E/c²
Look at some shorter periods of time to decide whether their reasonable. Do that by simplifying the fraction. . . . . 40,000 pounds / 80 years = 4,000 pounds / 8 years = 2,000 pounds (1 ton) / 4 years = 1,000 pounds / 2 years (have you decided yet ? Well, simplify it some more) 1,000 pounds / 2 years = 500 pounds per year = almost 1 and 1/2 pounds of bread every day of your life. NOW what do you think ? Make sense ?
The 12 is multiplied by 4 to get 48, and
the (5r + 6t) is multiplied by 6 to get (30r + 36t), therefore
you are multiplying the outside by 4 and the inside by 6, putting
those together is 24 for a factor.
If 12(5r + 6t) = w, then
48(30r + 36t) is equal to 24w.
Answer:
3 units right and 4 units down
