Answer:
200×3 = 600
Step-by-step explanation:
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Answer:
399 minutes a month
Step-by-step explanation:
As I understand the question the answer would, in other words, be how many minutes you can long-distance call with the economy plan for under $30.
The unit ratio is 5 cents per minute, which equates to 20 minutes worth of call time for one dollar (100/5).
The economy plan is $20 cheaper than the deluxe plan. $20 spent on long-distance calling gets you 400 mintues, but the question asks for an integer that would still leave remaining money.
Therefore the answer is 399 minutes of long-distance calling, which would leave five unspent cents.
Answer:
a + b
Step-by-step explanation:
ax + ay + bx + by
a(x +y) +b(x + y)
(a + b) ( x + y)
therefore (a + b) ( x + y) divide x+y
x + y is canceled out both in the denominator and numerator
= a+b
S(p)=D(p)
400-4p+0.00002p4=2,800-0.0012p3
Solve for p
P=96.24
