Answer: package B is the better deal.
Step-by-step explanation:
package A offers free phone and 300 minutes. it will cost 0.12 per minute for each minute over the plan time. Also, package A has a base rate of $39.95. This means that if you average 356 minutes per month in talk time, the cost using package A would be
0.12(356 - 300) + 39.95 = $46.67
package B : phone costs $10 and has 350 minutes of time and 0.08 per minute for each minute over the plan time. Also, package B has a base rate of 35.95 not including the phone. This means that if you average 356 minutes per month in talk time, the cost using package B would be
10 + 0.08(356 - 350) + 35.95 = $46.43
Therefore, package B is the better deal since it is cheaper.
Answer:
36/5 or 7 1/5 or 7.2
Step-by-step explanation:
-3 3/5 = -18/5
-18/5 * -2 = 36/5
Answer:
x = 4 + sqrt(73) or x = 4 - sqrt(73)
Step-by-step explanation by completing the square:
Solve for x:
(x - 12) (x + 4) = 9
Expand out terms of the left hand side:
x^2 - 8 x - 48 = 9
Add 48 to both sides:
x^2 - 8 x = 57
Add 16 to both sides:
x^2 - 8 x + 16 = 73
Write the left hand side as a square:
(x - 4)^2 = 73
Take the square root of both sides:
x - 4 = sqrt(73) or x - 4 = -sqrt(73)
Add 4 to both sides:
x = 4 + sqrt(73) or x - 4 = -sqrt(73)
Add 4 to both sides:
Answer: x = 4 + sqrt(73) or x = 4 - sqrt(73)
Answer:
emma is 15 and her sister is 26
Step-by-step explanation:
Answer:
(6,8)
Step-by-step explanation:
You can just substitute the options into the inequalities
e.g. For option 1, you can put x=6, and you will find the RHS is smaller than LHS in both inequalities.
