Answer: The required system of equations representing the given situation is
Step-by-step explanation: Given that Sam needs to make a long-distance call from a pay phone.
We are to write a system to represent the situation.
Let x represent the number of minutes Sam talked on the phone and y represents the total amount that he paid for the call.
According to the given information,
with prepaid phone card, Sam will be charged $1.00 to connect and $0.50 per minute.
So, the equation representing this situation is
Also, if Sam places a collect call with the operator he will be charged $3.00 to connect and $0.25 per minute.
So, the equation representing this situation is
Thus, the required system of equations representing the given situation is
Answer:
2 and 4
Step-by-step explanation:
Consider a perfect square smaller than 8 and a perfect square larger than 11
That is 4 and 16, then
< and < , that is
2 and 4
Answer: 12 packages
Workings out:648 / 55 = 12 packages
I hope im correct.
Answer:
b
Step-by-step explanation:
126+168=294 so the answer is b
When you multiply two integers with different signs, the result is always negative. Just multiply the absolute values and make the answer negative. When you divide two integers with the same sign, the result is always positive. Just divide the absolute values and make the answer positive.