Answer: She has to score a minimum of 92 marks to take her average to 80
Step-by-step explanation:
Let the equation be
Three months total = 76 x 3 = 228
(x + 228) / 4 = 80
x + 228 = 80 x 4
x = 320 - 228
x = 92
Answer:
B.
Step-by-step explanation:
475 - 95 = 380 = 20% of sales
20% = 1/5
380 × 5 = $1900 (the answer)
Hope this helps!
Okay so your equation is going to be : 18= 5k + 3.25p
