Answer:
A
I Had that question before
Answer:
3 + 10.8 is : rational.
Step-by-step explanation:
the reason for this is because it is neither a variable, pi, or numbers like square root 2.
100 centimeters is equal a meter so you can say 345 centimetres is the same as 3,45 metres
i hope i helped you somehow
Answer:
y = 30
Step-by-step explanation:
We can use ratio's to solve this
40 20
----- = -----------
100 20 + y
Using cross products
40 * (20+y) = 20*100
Distribute
800 + 40y = 2000
Subtract 800 from each side
40y = 2000-800
40y = 1200
Divide by 40
y = 1200/40
y =30
Step-by-step explanation:
First, let's distribute the 
variable to each term in the first parenthesis:
Next, let's distribute the variable to each term in the second parenthesis:
Next, let's group like terms together:
Finally, let's add or subtract like terms to get the result:
