mathxl.com Take a Test -jose gonzalez Solve the problem using a system of equati

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mathxl.com Take a Test -jose gonzalez Solve the problem using a system of equations in two vari. Chegg Tutors | Online Tutoring I Chegg.com Math 2412-P05 (Fall 2017) jose gonzalez Quiz Quiz #10 (9.4, 9.5, 10.1-10.3) Time Remalning: 01:38:13 Submit Quz This Question: 1 pt 30, 16 (2 complete) This Quiz: 16 pts possible Solve the problem using a system of equations in two variables. Find two numbers whose sum is 18 and whose product is 77 The two numbers are (Use a comma to separate answers.) Enter your answer in the answer box.

Explanation / Answer

Let the numbers be x and y

x + y=18

x=18-y

xy=77

(18-y)y=77

18y-y2=77

y2-18y +77=0

(y-11)(y-7)=0

y=7,11

x=11,7

Numbers are 11 and 7

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