Answer:
Y=5
You must first divide b (-10) by two and square it to know what you need to make a perfect square (25). You must then add or subtract the amount to make C (-13) into that number (add 38). Don't forget to do it on the other side too! (3 becomes 41) You then factor the left side. ((Y-5)^2=41) The result is your answer. (Y=5)
The GCF is of 11ab +32ab is 43ab
Answer:
The purchase price is 71.4% of the sale price.
Step-by-step explanation:
1) 45 / 63 = 0.714
2) 0.714 * 100 = 71.4%
I didn't see part B.
For this case we can solve the problem by means of the following rule of three:
100 $ --------------> 100%
x -------------------> 250%
From here, we clear the value of x.
We have then:
Rewriting we have:
Answer:
The price of a four star dinner today is $ 250.
