First day : 30+20y
Second day : 85 + 17y
Total: 30 + 20y + 85 + 17y This is the not simplified version.
37y+115 This is the simplified version.
Do 100 divided by 30 and it equals a decimal
Answer: She can buy 6 shirts
Step-by-step explanation: You subtract 95 from 240, which gives you 145 so you do 145/22.5 which will give you 6.4444 but you can't buy .44 of a shirt so you round down and you get 6.
Hopefully, you're talking about Pythagorean theorem.
a^2 + b^2 = c^2
They gave us side a and side c, so we plug in our values
10^2 + b^2 = 16^2
You solve the exponents
100 + b^2 = 256
Subtract 100 on both sides
100 + b^2 = 256
-100 -100
You're left with:
b^2 = 156You square root both sides
b = 12.489...
We round and get our final answer:
b = 12.49
Good luck!