Answer:
The dimensions are 10 2/3 feet by 5 1/3 feet (Ten and two-thirds and five and one third).
Step-by-step explanation:
This is our system of equations:
y=Length
x=Width
y=2x
2x+2y=32
We can substitute the y value in the second equation by plugging in the first equation:
2x+2(2x)=32
2x+4x=32
6x=32
x=16/3 or 5 1/3
We can plug in this x value into the first equation to find the y value:
y=2(16/3)
y=32/3 or 10 2/3
C. 8 Girls
3+2=5
20/5=4
4x2=8
Answer:
17
Step-by-step explanation:
4a - 4 = 2a + 30
2a = 34
a = 17
Answer:
three points gives triangle. two points gives a straight line.
Answer:
Terrell drove 200 miles one way
Step-by-step explanation:
Since his trip concluded at 9 hours, let's say that x = time traveled at 40 mph
and 9 - x = time traveled at 50 mph
D = (rate) x (time)
<em>40x = 50(9 - x)</em> -----Use Distributive property on the right side of the equation
<em>40x = 450 - 50x</em><em> </em>-----Add 50x on both sides
<em>90x = 450</em> ------Divide by 90 on both sides
We end up with<em> x = 5 </em>which is the value we need to determine the distance of our first trip, calculated by
<em>D = 40x</em>, or <em>40(5) = 200 mi</em>