10 days is twice the half-life. After 5 days, can expect

grams to remain; after another 5 days, you'd be left with

grams.
x = 30
The distributive property says that we need to multiply what's in the brackets by 1/2 (so 1/2*x and 1/2*6) to get the equation 1/2x + 3 = 18.
Then we need to subtract our constant, 3, from boths sides to get 1/2x = 15.
Multiply both sides by two to isolate x and you get x = 30.
Hope this helps! :)
Answer:
Carl's checked bags way 15.5 kilograms each.
Step-by-step explanation:
35-4=31 -> 31÷2=15.5
i agree with martin because i added 700+490+17 and got 1,207
Answer:

Step-by-step explanation:
First, we need to find how much extra water Nathan drinks.
extra ounces.
To find the percent increase:
(to the nearest percent)
Hope this helps :)