Answer:
31 pounds
Step-by-step explanation:
From the information given, you can write the following formula to calculate the total cost of sending gifts:
Total cost of sending gifts=2.50+0.85x, where x is the weight of the gifts in pounds
Also, you know that the total cost of sending gifts is $28.85 and you can replace this value and solve for x:
28.85=2.50+0.85x
28.85-2.50=0.85x
26.35=0.85x
x=26.35/0.85
x=31
According to this, the answer is that the gifts weighed 31 pounds.
Answer:
7.8/7R4
Step-by-step explanation:
(2+1=3), (4+1=5) 3-2=1*5=5 39/5=7.8/7R4
Answer:
14.42
Step-by-step explanation:
To solve this use the Pythagorean Theorem:
a^2 + b^2 = c^2
64 + 144 = 208
the square of 208 is approximately 14.42
Answer: Plan A will cost less than Plan B for phone use that is less than or equal to 100 minutes
Step-by-step explanation:
Let m be the number of minutes of phone use.
We can convert $35 and $36 to 3500 cents and 3600 cents respectively.
Then, in Plan A, it would cost 3500 + 6m and in Plan B, it would cost 3600 + 5m.
Since we want Plan A to cost less, we can set up an inequality saying:

We can subtract 3500 + 5m from both sides:

Therefore, Plan A will cost less than Plan B for phone use that is less than or equal to 100 minutes.