HELP QUICK PLZZZZ HURRY

Mathematics

2 answers:

topjm [15]3 years ago

7 0

Answer:

B. y

Step-by-step explanation:

so look at the infromation you have it shows you that there are 22 people who prefer to take an airplane to new york so in the column that has airplane and new york in that column there should be the number 22 representing the 22 people and repeat that process for the other 3 columns

Anarel [89]3 years ago

5 0

Answer:

The answer is B

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Solve for x and y in the system of equation 3x²+4y=17 2x²+5y=2 I'll mark brainliest

Novay_Z [31]

Answer:

$x=\pm \sqrt{11} \\y=-4.$

Step-by-step explanation:

$\left \{ {{3x^2+4y=17} \atop {2x^2+5y=2}} \right. \\\\Then\\\\\left \{ {{2 \times (3x^2+4y)=2 \times 17} \atop {3\times(2x^2+5y)=3\times2}} \right. \\\\\left \{ {{6x^2+8y=34 \quad (1)} \atop {6x^2+15y=6\quad (2)}} \right.\\\\(1)-(2) \Rightarrow -7y=28 \Rightarrow y =-4.\\Since \: \: 2x^2+5y=2 \Rightarrow 2x^2=2-5y\\\Rightarrow 2x^2=2+20=22\\\Rightarrow x^2=22:2=11\\\Rightarrow x=\pm \sqrt{11}.$