Ted needs an average of at least 70 on his three history tests. He has already scored 85 and 60 on two tests. What is the minimu
2 answers:
Answer:
Minimum grade Ted needs on his third test is:
65
Step-by-step explanation:
Ted scored 85 and 60 on two tests.
Ted needs an average of at least 70 on his three history tests.
Let he scored x in third test
So,
Multiplying both sides by 3, we get
85+60+x ≥ 70×3
145+x ≥ 210
subtracting both sides by 145, we get
x ≥ 65
Hence, minimum grade Ted needs on his third test is:
65
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