Answer:
can you describe it a little better? i cant understand it
If you multiply them all you get 3.0519273e+15 as your answer.
Let x = number of 5 cent coins.
Then there are (x+2) 10 cent coins.
Let y = 20 cent coins.
Total coins: x+(x+2)+y = 30
2x+y=28
y = 28-2x (1)
Total value: 0.05x + 0.1(x+2) + 0.2y = 3.80
0.15x + 0.2y + 0.2 = 3.80
0.15x + 0.2y = 3.60 (2)
Substitute (1) into (2).
0.15x + 0.2(28-2x) = 3.60
-0.25x + 5.60 = 3.60
2.00 = 0.25x
8 = x
From (1), obtain y = 28 - 2(8) = 12
Answer: (x+2) = 8+2 = 10
Louise has 10 10-cent coins
Answer:
D: -35
Step-by-step explanation:
Take the sign of the larger which is negative.
subtract 99-64 to get 35.
Add your negative sign to get -35.
Answer:
9/10*5/6 and 7/8*6/7
Step-by-step explanation:
Multply each one and compare the quotient, rember to simplify
