The answer is A). Five people received the email on the first day on the experiment.
Answer: let the no of paperback books be x and hardcover books be y
4y - x = 3
Therefore, x - 4y = -3 -----(1)
x + y = 447 ----(2)
Put x = 447 - y in eqn 1
447- y - 4y = -3
-5y = -3 - 447
-5y = -450
y = 90
x = 357
Step-by-step explanation:
3 increased by the product of 4 and 12 is 3 + (4 * 12)
Answer:
c
Step-by-step explanation:
answer:
no
step-by-step explanation:
step one- cross multiply
3*15=4*6
step two- multiply
3*15=45 4*6=24
step three- simplify
45=24
45 and 24 aren't equal, therefore 3/4 and 6/15 are not proportional
good luck :)
i hope this helps
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