Answer:
y =
Step-by-step explanation:
a - y = b + ( multiply through by a to clear the fraction )
a² - ay = ab + y ( subtract y from both sides )
a² - ay - y = ab ( subtract a² from both sides )
- ay - y = ab - a² ← factor out y from each term on the left side
y(- a - 1) = ab - a² ( divide both sides by - a - 1 )
y = ( multiply numerator/ denominator by - 1 )
y =
There are three correct answers, they are the following:
A, D, and F
81, 27 and 9 are all powers of 3.
Let's write them in terms of 3.
81 = 3^4
Therefore we can write,
and since 27 = 3^3 we can write,
and 9 is 3^2.
So our equation looks like this,
Applying our exponent rule, division to subtraction, gives us,
And from this point, since the BASES are the same,
we can simply equate the exponents:
4(x-2)-3x = 2
and then solve for x.
3/4 of a pound is half of 1.5 pounds ( 3/4 + 3/4 = 1.5)
3.60 / 2 = $1.80
it will cost $1.80 for 3/4 of a pound
MA/MN = MB/BP
MA = 46.2 -14
MA=32.2
so
MA/MN = MB/BP
32.2/46.2=x/72.6
46.2x = 72.6 * 32.2
46.2x = 2337.72
x = 2337.72 / 46.2
x = 50.6