Answer:
Step-by-step explanation:
Perimeter = 2*(length +width)
P = 2*( x+8 + y-1)
P = 2*(x + y + 7)
P =2x + 2y + 17
Answer:
Maximum customer= 53
Minimum customer= 47.
Step-by-step explanation:
Given: On average, 45 people buy lemonade.
Customer can vary by as much as 8 people.
Now, finding maximum and minimum number of customer, Meghan should expect.
We know, the average number of customer in Meghan´s stand is 45.
As given, customer can vary by as much as 8, which means it can increase by 8 customer or decrease by 8 customer.
∴ Maximum customer=
Minimum customer=
Hence, The maximum number of customer is 53 and minimum number of customer is 37.
Answer:
- 12x +9y ≥ 510
- y ≤ 2x
- y ≥ 25
Step-by-step explanation:
Phoebe earns 12x for her yard weeding, and Richie earns 9y for his dog walking. They want the sum of these earnings to be at least 510, so the first constraint inequality is ...
12x +9y ≥ 510
__
Richie plans to walk no more than 2x dogs, since y is the number of dogs he walks, the second constraint is ...
y ≤ 2x
__
Richie will walk at least 25 dogs, so ...
y ≥ 25
Answer: The answer is 314.28 cm² (approx.).
Step-by-step explanation: Given that an engineer is going to install a new water pipe. The diameter of this circular pipe is, d = 20 cm.
We need to find the area 'A' of the circular cross-section of the pipe.
Given, diameter of the circular section is
So, the radius of the circular cross-section will be
Therefore, cross-sectional area of the pipe is
Thus, the answer is 314.28 cm² (approx.).