Answer:
59
Step-by-step explanation:
4^2 +5*3^2 -4^2 / 2^3
order of operations says to do first parenthesis, exponents, then division and multiplication
first the exponents
4^2 = 16
3^2= 9
4^2=16
2^3=8
16+ 5*9-16/8
then multiply 5*9
=16+ 45 -16/8
simplify the fraction
=16+ 45 -2
add them
=59
i hope this helps
The answer is 8 To you question
Answer:
Step-by-step explanation:
You are using the wrong accounting system
Forget the nine dollars.
If the thing bought was 25 dollars, then each one of A B and C put in 25/3 = 8.3333 dollars. If 1 dollar each was going back, then the sum became 9 1/3 dollars. 3 * 9 1/3 = 27 + 1 = 28. There is 2 dollars left. Everything is fine.
25 + 3 = 28
The three each got 1 dollar back. But the total accounted for is 25 + 3 = 28
There's 2 left over. That makes 30. Everything's fine. There is no missing dollar.
Step by step explanation:
X + y=25
-y. -y
X=25-y
3x +4y= 90
3(25-y) =90
75-3y=90
-75. -75
-3y =15
/-3. /-3
Y=-5
X=25-(-5)
X= 25+5
X=30
Y=-3x+5
y=-8x+25
-3x+5=-8x+25
-20=-5x
x=4
y=-3(4)+5=-7