Candace asked 100 students which crisp flavour they liked best out of ready salted cheese and onion or salt and vinegar.
42 of the students are boys.
17 of these boys liked cheese and onion the best.
15 girls liked ready salted best.
23 out of the 39 students who like salt and vinegar best are girls.
Work out the number of students who like ready salted best.

step-by-step explanation:

the answer is c)8

step-by-step explanaction:

5x+10 is the correct one

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.