It seems to me this just wants you to add the 3 equations.
2m + 2n +5p
Answer:
{3, 4, 5, 6, 7, 8, 9, 10, 11}
Step-by-step explanation:
Let integer be x
x > 2 and x < 12
gives
2 < x < 12
All such integers are {3, 4, 5, 6, 7, 8, 9, 10, 11}
Answer:
Rational
Step-by-step explanation:
This number is rational because it can be expressed as a ratio between two numbers.
Answer:
B | 8.45 miles per hour.
Step-by-step explanation:
8.45 x 2 is 16.9.
Answer:
$55
Step-by-step explanation:
Let b represent the original bill. The problem statement tells us ...
20% × (b -6) = 9.80
Dividing by 20% gives ...
b -6 = 49.00
b = 55.00 . . . . . . . add 6
Their bill before the discount was $55.00.
___
<em>Comment on the tip</em>
It is generally considered better form to tip on the basis of the original bill before coupons and discounts.
