MARKING BRAINLIEST!An airline knows that 9 out 50 passengers who book a flight do not show up. If 300 people booked a flight , how many will not show up?

Answers

Answer 1

Answer:

54 people dont show up

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How to factor completely: 15x²-40x-15

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$15x^2-40x-15 =0\ \ /:5\n \n3x^2-8x-3 =0 \n \na=3, \ b=-8 , \ c= -3 \n \n\Delta =b^2-4ac =(-8)^2 -4\cdot 3\cdot (-3)=64+36=100 \n \nx_(1)=(-b-\Delta )/(2a)=(8-√(100))/(2 \cdot 3)=(8-10)/(6)=-(2)/(6)=-(1)/(3)$

$x_(2)=(-b+\Delta )/(2a)=(8+√(100))/(2 \cdot 3)=(8+10)/(6)= (18)/(6)=3\n \n 3x^2-8x-3 = 3(x+(1)/(3))(x-3)=(3x+1)(x-3) \n \n \nAnswer : \ 15x^2-40x-15 = 3x^2-8x-3 =(3x+1)(x-3)$

Can a linear equation and a linear inequality be solved in the same way? Explain why. What makes them different?

Answers

There are some extra mathematical rules on an inequality, for example, when you multiply or divide both sides by a negative number the direction of the inequality must be switched. > to < or < to >, etc. Another difference is that in a linear equation you get a number as the result, in an inequality, you get an interval of numbers.

A cherry blossom tree grows 2 inches per year. A cherry blossom tree is 28 currently inches. How tall, in inches, will the cherry blossom tree be in 13 years?