Answer:
his mass before the race was 68.5kg
Step-by-step explanation:
let,his mass before the race was 'x'
By question,
x-2% of x =67.13
or,x- 2x/100=67.13
or, 98x/100=67.13
or,98x=67.13×100
or,98x=6713
or,x=6713÷98
or,x=68.5
thus,his mass before the race was 68.5 kg
Answer: 12.5%
Step-by-step explanation:
80x 12.5%=10
80+10=90
Answer:
Step-by-step explanation:
Let m = maracas
c = claves
d = djembe drums
12m + 6c + xd = $326
Answer:
11(2r+1)
16(2t+1)
9(4+c)
14(3k+2)
Step-by-step explanation:
no real way to explain besides factor them and take the largest common factor out