Answer:
Area = 84 in²
Step-by-step explanation:
In order to find the area of the rectangle, you need to first set up an equation to find the length based on the information already given in the problem. Since the perimeter = 40 and the formula to find perimeter of a rectangle is: P = 2W + 2L, where W = width and L=Length, we can solve for 'L' by putting in the values given:
P = 2W + 2L or 40 = 2W + 2(3W - 4)
The length of the rectangle is '4 less than 3 times the width'. This can be written as the expression '3W - 4'.
Distribute: 40 = 2W + 2(3W - 4) or 40 = 2W + 6W - 8
Combine like terms: 40 = 8W - 8
Add '8' to both sides: 40 + 8 = 8W - 8 + 8 or 48 = 8W
Divide both sides by '8': 48/8 = 8W/8 or 6 = W
Solve for L: 3W - 4 or 3(6) - 4 = 18 - 4 = 14
Since L=14 and W = 6, we can solve for Area using the formula: A = LxW or A = (14)(16) = 84in².
A credit card's interest rate is the price one pay for borrowing money. This is called the annual percentage rate (APR).The Interest paid can be calculated by the formula I=PTR ÷ 100
Where P = Principal amount ,R= rate of interest in years.T= time.
P=$1,300 ,R= 20% T= year.
Substituting these values :
I= 1300 x 20 x1 ÷100
I= 260. He will pay an interest of 260÷12= $21.7 per month.
Area of triangle = 1/2 × base × height
so,
24=1/2*base*4
base=12m
The answer is 39
52-4*6+11=39
I hope this helps.
The area of the garden needs to be greater than 400 square feet but less than 600 square feet
