Answer:
2.5 miles
Step-by-step explanation:
64/8=20/x
8=20/x
*x *x
8x=20
/8 /8
x=20/8
x=5/2 or 2.5
5x+4y=-2
3x+4y=10
Make one with negative coefficient to find first what is x then solve for y .
-1(5x+4y)= -1 (-2)
3x+4y=10
-5x-4y=2
+ 3x+4y=10
_________
-x = 12
Divide both sides by -2
-2x/-2=12/-2
X= -6
Now substitute your x into one of the equations to find y .
-5x-4y=2
-5(-6)+4y=2
30+4y=2
Subtract 30 both sides
-4y= 2-30
Divide both sides by -4
Y= -28/-4
Y= 7
Your answer is in point form (-6,7) meaning x is -6 and y is 7.
Answer:
X= 16
Step-by-step explanation:
Espero que mi respuesta te ayude.
Answer:
5 hours
Step-by-step explanation:
So what you have to do is set the two equal to one another and solve for x
50+36x=35+39x
-35 -35
15+36x=39x
-36x -36x
15= 3x
/3 /3
5=x
44 square feet
Diameter (4) divided by 2 is radius (2).
SA = 2πr^2 + 2πrh
SA = 2 * 3.14 * 2^2 + 2 * 3.14 * 2 * 3
SA = 2 * 3.14 * 4 + 2 * 3.14 * 2 * 3
SA = 6.28 * 4 + 6.28 * 3
SA = 25.12 + 18.84
SA = 43.96
Round to the nearest tenth.
SA = 44 square feet
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