X=length
y=width
Area (rectangle)=length x width
we suggest this system of equations:
y=x/5
xy=9/20
solve this system of equations by substitution method:
x(x/5)=9/20
x²/5=9/20
Least common multiple=20
4x²=9
x²=9/4
x=⁺₋√(9/4)
we have two solutions:
x₁=-3/2 it does not validate
x₂=3/2 ⇒y=x/5=(3/2)/5=3/10
The dimensions of the lake are:
lengh=3/2 miles
width=3/10 miles
to check:
Area=3/2 miles x 3/10 miles=9/20 miles².
width is 1/5 the length of the lake ⇒ 3/10 miles=(3/2) /5 miles
Answer: 8%
Step-by-step explanation:The shipping and handling fee of $35 was applied to the order or $437.50.
Divide the total by the shipping and handling fee:
35 / 437.50 = .08
Multiply by 100 to get percent:
.08 x 100 = 8%
Answer:
35
Step-by-step explanation:
<u>7x2</u>+21
<u>14+21</u>
35
*The underlined problems is what you do first*
