Answer:
a) 952
b) 136
Step-by-step explanation:
<u>Ratio of b:g = 3:4, based on this we have:</u>
- Number of boys = 3x
- Number of girls = 4x
- Total number of pupils = 3x+4x = 7x
<u>Number of spectacle wearers:</u>
- 1/3*3x + 3/8*4x = x + 3/2x = 2.5x
<u>Number of those not wearing spectacles:</u>
<u>And this number equals to 612, then we can find the value of x:</u>
- 4.5 x = 612
- x= 612/4.5
- x= 136
a) T<u>otal number of pupils:</u>
b)<u> The difference in the number of boys and girls:</u>
Answer:
New mean will be( 8 + 3 + 4 + 2 + 8) / 2
= 25/5 = 5 (old was 6)
New median will be 4 (old was 8)
Answer:
Mr. Harris' problem was a man tried to attack him he solved it by driving away.
He displayed the character traits suspicious and direct.
Step-by-step explanation:
Mr Harris was approached by a suspicious man and he felt uncomfortable. This placed him in and uneasy sittuation and once the man attacked with the crowbar he escaped by pressing the gas.
Use the equation d=m/v and rearrange it to be v=d*v
