Answer: Choice C) -11
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Explanation:
The first equation given is y = 3 - 1/2x
In other words, y is the same as 3 - 1/2x.
We can replace y in the second equation with 3 - 1/2x
This is known as substitution (think of a substitute teacher who is a temporary replacement for your teacher)
Doing this leads to...
3x+4y = 1
3x+4*y = 1
3x+4*( y ) = 1
3x+4*( 3 - 1/2x ) = 1 <<--- y has been replaced with 3-1/2x
3x+4*(3) +4*(-1/2x) = 1
3x+12-2x = 1
3x-2x+12 = 1
x+12 = 1
x+12-12 = 1-12 <<-- subtracting 12 from both sides
x = -11
Which is why the answer is choice C) -11
Answer:
4.264007e+14
Step-by-step explanation:
Hope this helps
Answer:
3- (-5) + -2.
Step-by-step explanation:
Anything plus a negative number will either make that negative number go closer to zero, or turn into a positive number.
Answer: Sorry this took so long, here is the photo
Solve for z by simplifying both sides of the equation, then isolating the variable.
The item us going to cost 4.975
just convert the percent to decimal by moving the decimal point two spaces to the left and multiply it times the price and it will give you the discount the subtract the discount from original price and the result will be the new price.
99.50x.95=94.525
99.50- 94.55=4.975
you can round it up to 4.97
