1) Add 1.2 to both sides
7k=21
2) Divide 7 on both sides.
k=3
Your answer is 3.
Answer: 170
Step-by-step explanation:
Since they get hit by 85% of the snowballs and there were 200 snowballs thrown, the number of snowballs that hit them will be gotten by multiplying 85% by 200. This will be:
= 85% × 200
= 0.85 × 200
= 170
Therefore, 170 snowballs hit them
Note that the notation

is just another way of writing

. Here, we're simply taking the expression for f(x) and adding the expression for g(x) to it. Together, we have:

Which means that

And from there, it's just a matter of combining like terms to simplify.
Answer:
length 15 width 9
Step-by-step explanation:
Then the length can be represented by the following expression: (x + 6)
Since area is equal to length times width, we can write the following equation for the area:
A = length * width
135 = (w + 6) * w
Now we can solve for w after using the distributive property and factoring:
135 = (w + 6) * w
135 = w^2 + 6w
0 = w^2 + 6w - 135
This factors to:
0 = (w + 15) (w -9)
w = -15 OR w = 9
Answer:
B.
Step-by-step explanation:
Multiply each point's x and y coordinates by 2.