Option b is the correct answer
No, the table is not proportional.
Proportional means that it has a consistent change in ratio. In this table, 4:5 is the ratio. So, for the table to be proportional, the next numbers would be 8 (mins) and 10 (ft), 12 (mins) and 15 (ft), and so on.
Thus proving that the table given is not proportional.
I hope this helps!
Answer:
Step-by-step explanation:
Multiply the two polynomials by multiplying each term
Answer:
See explanation
Step-by-step explanation:
Let x be the number of hours per week Nando is brisk walking and y be the number of hours per week Nando is biking at a moderate pace.
For the first month, he needs to exercise at most five hours per week, then
Brisk walking burns about 350 calories per hour, then it burns 350x calories per x hours.
Biking at a moderate pace burns about 700 calories per hour, then it burns 700y calories per y hours.
Nando must burn at least 2,000 calories per week, so
You get the system of two inequalities:
The attached graph shows the solution set to this system of inequalities. In this diagram, red region represents the solution set to the first inequality, blue region represents the solution set to the second inequality and their intersection is the solution set to the system of two inequalities.
The square root of 20 is 4.472 and the square root of 63 is 7.937