Hey there! :)
Order of operations = PEMDAS
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Addition is first
8 + 4 = 12
12 - 3 = 9
Your answer is 9
Hope this helps :)
Answer:
(x,y)=(-8,-1)
Step-by-step explanation:
(2) rearrange
x=-2+6y
-4(-2+6y)+5y=27
8-24y+5y=27
8-19y=27
-19y=19
y=-1
x=-2+6(-1)
x=-2-6
x=-8
Hope this helps :)
Answer:
22 3/4 hours
Step-by-step explanation:
monday + tuesday + wednesday + thursday + friday
3 1/4 + 4 1/3 + 4 1/3 + 4 1/3 + 6 1/2
the common denominator is 12
3 1/4 *3/3 = 3 3 /12
4 1/3 * 4/4 = 3 4/12
6 1/2 * 6/6 = 6 6/12
3 3 /12 + 4 4/12 + 4 4/12 + 4 4/12 +6 6/12 =
(3+4+4+4+6) + (3 +4+4+4+6)/12
21 +(21/12) we can simplify 21 /12
21 + 12/12 + 9/12
21 + 1 + 9/12
22 + 9/12 we can simplify 9/12 by dividing top and bottom by 3
22 3/4
