X = alice
y = aaron
x + y = 320
x = 2(y - 5) = 2y - 10
(2y - 10) + y = 320
3y - 10 = 320
3y = 320 + 10
3y = 330
y = 330/3
y = 110 <==aaron's score
x = 2y - 10
x = 2(110) - 10
x = 220 - 10
x = 210 <==alice's score
1) 1000 / 100 ⇒ 10 / 1 = 10
1000 ÷ 100 = 10
100 ÷ 100 = 1
2) 9/81 ⇒ 1/9
9 ÷ 9 = 1
81 ÷ 9 = 9
3) 4/64 ⇒ 1/16
4 ÷ 4 = 1
64 ÷ 4 = 16
Answer:
hello : 6.23x10^14 > 8.912x10^12^12
Step-by-step explanation:
let : A= 6.23x10^14 and B = 8.912x10^12
A= (6.23x10^2) x10^12 ... because : 10^14 = 10^2x10^12
A = 623 x 10^12
623 > 8.912
so : A > B
4 x 10^6 is the answer to the questioin