The answer would be 60, if you add 13,15, and 12 up you get 40. Those numbers would be considered 2/3 of all the marbles. Divide 40 by 2 to get how many marbles is 1/3. You would get 20 being a third if the marbles. Add that to the original 40 and you’ll get a total of 60.
This order,
P: Parentheses
E: Exponents
M: Multiplication
D: Division
A: Addition
S: Subtraction
11 hours-1
10*15.18
151.80*5
Answer is$ 759 is her total pay
Solve by elimination
multiply top by -1
-2x + y = -4
x - y = -2
-x = -6..............so x = 6
2(6) - y = 4
12-y = 4
-8 = -y
so y = 8
(-6,8)
Answer:interest =p×r×t ÷100
Time = 21/2 -5/2
Interest = 7150×5×5/100×2
answer =1787.5
Amount = P-I
7150-17875/10
Answer = 5362.5
Step-by-step explanation: