You gave your brother a 50-foot start in a race. If he ran 10 feet every 5 seconds what is the minimum speed you would have to run to catch him in at least 20 seconds from the time you both started?

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

to complete this square you have to rotate about the origin 270 degrees clockwise.

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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