<span>L=3W
12=3w*w
12=3w</span>²<span>
W</span>²<span>=12/3
W</span>²<span>=4
W=2
L=3*2=6
Check ~
12=6*2
12=12</span>
in the equation as we can say x= 2y-10.
so, substitute x=2y-10 everywhere then the x in 1240 gets cancelled with 2y-10 then solve the remaining you will get 4y-20+3y=1240
7y=1260
y=1260/7
y=180
then substitute the value of y everywhere
2x+3y=1240
2x+3(180)=1240
2x=1240-540
2x=700
x=350
DONE.
Answer:
319 seconds
Step-by-step explanation:
The distance 12.42 miles is equivalent to
12.42*5280=65577.6 ft
When slope is 6.4%,
Therefore,
Also
Making t the subject of the formula by solving quadratic equation
t=318.4791278210496
Therefore, time is 319 seconds
Answer:
Step-by-step explanation:
We need to use the properties shown below to solve this:
1.
2.
3.
Area of a triangle is given by 1/2 * base * height, so we do that and simplify: