X+y=9
y=8x
x+8x= 9
9x = 9
x = 9/9
x = 1
y = 8(1)
y =8
Alright, so after a half-life, half of the previous number would be left. So basically,
180 g ← 0 half lives
90 g ← 1 half life
45 g ← 2 half lives
22.5 g ← 3 half lives
11.25 g ← 4 half lives
Therefore, the answer is 11.25 grams
1) Seven divided by the difference of 10 and 3
2) A fraction where the numerator is seven, and the denominator is the difference of 10 and 3
3) Seven divided by the quantity of 3 subtracted from 10
Answer:
Whats the Question?
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
5(x-1)-2
5(2-1)-2
5×1-2
5-2
3
Hope this helps you :)
please mark brainliest