112 me dió a eso mira haber si es si no trate.
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The sum of their speeds is 380 miles per hour. The difference of their speeds is 30 miles per hour. Then the faster plane is traveling at
.. (380 +30)/2 = 205 miles per hour
The slower plane's speed is 30 miles per hour less, so it is traveling at
.. 205 mph -30 mph = 175 miles per hour
Answer:
51/40
Step-by-step explanation:
Find a common denominator. That would be 40. Multiply numberator and denominator by the same number to get a denominator of 40. Then you can add.
7(5)/8(5) + 2(8)/5(8)
35/40+ 16/40
51/40
Its B.6 because when you plug in 1 for y the equation is 3x-1=17 and you have to cancel out y to get 3x=18 by itself because you have to add 1 to the 17 since you canceled it out of the equation then you are left with 3x=18 and you divide both sides by 3 and then 18 divided by 3 is 6 so x=6