The first checkpoint = 1check
the second checkpoint = 2check
complete distance = f
1check = 2/5 (2check)
2check = 1/4 (f)
then
1check = 2/5 * 1/4 (f)
1check = 1/10 f
the distance of the first check point is 1/10 of the distance of race
notes:
c= Colin
s=Sara
g=Gordon
c=g+36 (1)
c : g
5 : 1
c/g=5
c=g*5 (2)
=> from statement (1) => g*5=g+36
5g-g=36
4g=36
g=36/4=9 g=9 sweets
=> from statement (2)=>c=5*9=45 c=45 sweets
s : g
2 : 1
=>s/g=2/1
=> s=2g
s=2*9 s=18 sweets
sum=c+s+g
sum=45+18+9=72 sweets
Answer:
7x7x7x7x7
7x7
Step-by-step explanation:
7 to the fifth power is equal to 7x7x7x7x7
7 to the second power is equal to 7x7
Your answer is 140. I figured it out by subtracting 20 from 160. Then I added it all up and got 720.
