Answer:
1. X3, 15x - 10y = 80 15x - 7y = 51
-17y = 29
2. 8 = 1/60 + a. 8 - 1/60 = 7.98333333333
6 = 1/80 + b. 6 - 1/80 = 5.9875
13.9708333333
3. I genuinely dont know sorry.
4. Pencil = $0.05. Pen = $1.05
Step-by-step explanation:
The first on is the tenth place
the second one is the tenth place
the third one is the tenth place
the last one is the millionth place
hope i helped :) i might be wrong though
Answer:
9 and 3/8 left over
Step-by-step explanation:
to calculate this you have to convert the cups to eighths so:
8 cups*8= 64/8
1/4*2= 2/8
64/8+ 2/8= 66/8
66 divided by 7= 9 and 3/8
10% off of 199.99 is 179.99
100% - 10% = 90% The 90% is how much you are going to pay.
90% into decimal form is 0.9
So you can do 199.99 x 0.9 = $179.99
Cross multiply
(3x - 1)(4x + 5) = (2x + 6)(6x - 4)
12x^2 + 11x - 5 = 12x^2 + 28x -24
Solve for x
-17x = -19
x = 19/17
