L=16
W=21
Set up a systems of equations:
x=length
y=width
xy=336
x+5=y
Use substitution to solve:
x(x+5)=336
x^2+5x=336
Solve using factoring:
x^2+5x-336=0
(x-16)(x+21)=0
x=16 and x= -21
Since length can't be negative, l=16
To find width, plug length into the first equation:
(16)y=336
y=21
So...
L=16
<span>W=21</span>
We need the question and the statements in order to know
Answer:
$5.07
Step-by-step explanation:
1. Find the total cost of apples first
1.99 * 3 = $5.97
2. Price of the bread
.89 * 2 = 1.78
3. Price of the box of cereal
3.99
4. Gallon of milk
3.19
5. Add all together
And you come up with 14.93 dollars
6. Subtract by 20
20 - 14.93 = 5.07
Answer:
≈ 47.2 m
Step-by-step explanation:
let the height from the sea to the base of lighthouse be h₁
let the height from the sea to the top of the lighthouse be h₂
using the tangent ratio in the right triangle
tan55.1° = 
= 
( multiply both sides by 610 )
h₁ = 610 tan55.1°
tan56.5° = 
( multiply both sides by 610 )
h₂ = 610 tan56.5°
then
height of lighthouse = h₂ - h₁
= 610 tan56.5° - 610 tan55.1°
= 610(tan56.5° - tan55.1° )
≈ 47.2 m ( to the nearest tenth )
