Answer:
(13 + x) * (15 + x) = 390ft²
18.8 feets ; 20.8 feets
Step-by-step explanation:
Given that:
Initial dimension of patio :
Length (L) = 13 feets
Width ( W) = 15 feets
Initial Area of rectangle :
Length * width = 13 * 15 = 195 feets²
To double the initial area of rectangle :
2 * 195 ft² = 390 ft²
Hence, area of proposed patio = 390ft²
Area of proposed patio:
(13 + x) * (15 + x) = 390ft²
195 + 13x + 15x + x² = 390
x² + 18x - 195 = 0
Using the quadratic equation solver:
X = - 33.77 = - 33.8 or
X = 5.77 = 5.8
X cannot be negative,
Hence, x = 5.8
Length and width of new patio:
Length = 13 + x = 13 + 5.8 = 18.8 feets
Width = 15 + x = 15 + 5.8 = 20.8 feets
yes it's correct............
Answer:
The profit of the bakery for this batch of rolls is C. $ 132
Step-by-step explanation:
You know the following this about the problem:
- xy=300 is the total cost of the production of the rolls, where x is the cost of the rolls and y is the number of rolls.
- Day 1 the bakery sold 4/5 of the rolls at 1.50 its value.
- Day 2 the bakery sold 1/5 of the rolls ar 0.8 of the price of Day 1.

The total gain of the sales is:
Day 1 + Day 2

and you know that xy =300, then the total gain is:

And the profit is the total gain less the total cost:
Profit = 432-300=132
Answer:
$60
Step-by-step explanation:
15/5 is 3 so 20 x 3 would be 60