Answer: 40
Step-by-step explanation:
angle 1 and 2 are alternative interior angle which means they are equal
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angle 1= angle 2
2x+20=3x+10
x=10
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angle 1=2x+20
=2(10)+20
=20+20
=40
Answer:
x=3
Step-by-step explanation:
Since this is an isosceles trapezoid
The angles at the top have to equal each other
112 = 30x + 11y
The sides also have to equal each other.
12 = 2x+3y
Divide each side by 3
12/3 = 2x/3 + 3y/3
4 = 2/3 x +y
Subtract 2/3 x from each side
4 -2/3 x =y
Substitute this into the first equation
112 = 30x + 11y
112 = 30x +11(4-2/3x)
112 = 30x +44 -22/3 x
Subtract 44 from each side
112-44 = 30x +44-44 -22/3 x
68 = 30x -22/3 x
Get a common denominator on the right of 3
68 = 90/3x -22/3 x
68 = 68/3 x
Multiply each side by 3/68
68 * 3/68 = 68/3 * 3/68 x
3 =x
Answer:
2 Hours
Step-by-step explanation:
4/7 of an hour = 34.3 minutes.
34.3 minutes per 2/7
4/7 = 68.6 OR 1 hour 8 minutes.
6/7 = 102.9 OR 1 hour 42 minutes.
Then add half of 34.3 (17.15)
7/7 = 120.05. = 2 hours 0.5 seconds.
Answer: 52 people per bus
Step-by-step explanation:
The rescue organization saved 472 people.
Of this 472, 4 were saved by being air-lifted.
The rest went into buses.
The people in buses were:
= 472 - 4
= 468
They fit into 9 buses so the total per bus was:
= 468/9
= 52 people per bus
Answer:
685,000
Step-by-step explanation:
