Answer:
6 ft
Step-by-step explanation:
Given : x + y = 99 ------------ [1]
Given : x² - y² = 99
We know that : (x² - y²) = (x + y)(x - y)
⇒ (x + y)(x - y) = 99
⇒ 99(x - y) = 99
⇒ x - y = 1 ------------- [2]
Adding Equation [1] and [2], we get :
⇒ (x + y) + (x - y) = 99 + 1
⇒ 2x = 100
⇒ x = 50
Substituting x = 50 in Equation [1], we get :
⇒ 50 + y = 99
⇒ y = 99 - 50
⇒ y = 49
So, The Ordered pair (x , y) = (50 , 49)
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
8x = 4y + 16 ← rearrange and solve for y
Subtract 16 from both sides
8x - 16 = 4y ( divide all terms by 4 )
2x - 4 = y , or
y = 2x - 4 ← in slope- intercept form
Answer:
River C: 2,600 miles
River D: 3,000
Step-by-step explanation:
Since beside a 400 mile difference they are the same just subtract 400 and divide it by 2 then add 400 to find river d
Or
$6.29
1 Pound = $25.16
I hope that it answered your question.