Answer:
Hi,
Step-by-step explanation:
So it says the first six months average is 75mm. Total÷Amount =Average so Average x Amount = Total The first six months is 75 so 75x6= 470. The last six months is 15 so 15x6=90. In total, 470+90=560. We need to find the new average so we do 560÷(6+6)= 46.666666… so we round it to 46.67.
I. hope you find this helpful.