Answer:
6 $1 bills, 5 $5 bills
Step-by-step explanation:
Say the student has x $1 bills.
Then they have 11 - x $5 bills.
31 = 1 * x + (11 - x) * 5 = 55 - 4x
4x = 55 - 31 = 24
x = 6
So, they have 6 $1 bills and 11 - 6 = 5 $5 bills
f(x) = 4*2ˣ = 2ˣ⁺²
The answer is B because it is an exponential function since x is an exponent. Also, decay mean decreasing and growth means increasing. The function 2ˣ⁺² is "growing" as x gets bigger because the base is not a fraction.
multiply the pro #s by the con ones
The answer is 82% so yeah
Answer:
x+y=68
x-y=15
Step-by-step explanation:
A "sum" means that we will be using addition, while a "difference" indicates subtraction. Anytime we have two unknown numbers we generally use "x" and "y".
