In order to get an 81 average,
the student has to get 81x5=405
71+96+90+73+?=405
330+?=405
405-330=75
he needs to get an 75
Answer:
well I divided 30/15=2
Step-by-step explanation:
so maybe that's your answer
Answer:
3(x+4) = 3(x) + 3(4)
=3x+12
Let me know if this helps!
Answer:
70.6% decrease
Step-by-step explanation:
4250-1250 = 3000
4250x = 3000
x=70.6%
70.6% decrease
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