Answer:
k = 3, q = 9
Step-by-step explanation:
hmm.... what k will end up giving that 6x on the right side of the equation?
Since 6x is the second thingy in that expression, its a good idea to try dividing by 2, lets try k = 6/2 = 3!
(x+3)^2 = x^2+3x+3x+9
(x+3)^2 = x^2+6x+9
that fits pretty good!
So, k = 3, q = 9
Answer:
It is 80.
Step-by-step explanation:
It's pretty simple-> Thousands, Hundreds, Tens, Ones.
Let the price before increase be Rs.100
Then , as the tpercentage increase =25%
Therefore, increase in price =
100
25
×100
=Rs.25
Therefore increased price =Rs.125
Therefore the percentage by which house wife should decrease the consumption be(
125
25
×100)%
=20%
Answer:
C
Step-by-step explanation:
Two pyramids are similar. It means that their side lengths are proportional.
So, let's see the proportionality constant from SMALL PYRAMID to LARGE PYRAMID.
The corresponding length of 8 in small pyramid is 24 in large pyramid. We ask ourself: "8 times WHAT gives us 24?"
This is the proportionality constant (aka "k").
So, 8 times "3" is 24. So the proportionality constant is "3".
k = 3
Now, the height of small pyramid is 6 and height of large pyramid is "x". These sides will be same way proportional. So, we can say:
6 times the proportionality constant (3) would give us x
So,
6 * 3 = x
x = 18
Correct answer is C
The unit rate is $1.97 per lightbulb. Multiply $1.97 by 7 to get 13.79