Mathematics · May / June 2022 · Paper 42 · Question 10
0580
As printed in the paper
Show the answer and mark scheme
10(a)[2]
1, 2, 3 10y + 8x ⩽ 80 oe final answer [2]
M1 for 15 − 8 > 5 n − 3 n oe If 0 scored,
B1 for 2 correct answers and no others or 3 correct answers with one extra value
10(b)(i)[3]
x > 4 oe final answer 2y > x – 4 oe final answer [3]
B1 for each If 0 scored,
SC1 for x ⩾ 4 oe final answer 10y + 8x < 80 oe final answer and 2y ⩾ x – 4 oe final answer and
10(b)(ii)[2]
23 final answer [2]
M1 for 7 and 2 selected soi
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