Answer:
6.2
Step-by-step explanation:
because 1 2/3 times 3 1/3 is 6.2
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Answer:
Step-by-step explanation:
You have an angle bisector in AD. That means the sides are in proportion to to BD and DC
It's much easier just to look at the proportion.
AB / BD = AC/DC
18 / (3x - 3) = 15/(x + 5) Cross multiply
18*(x + 5) = 15 (3x - 3) Remove the brackets
18x + 90 = 45x - 45 Switch the sides.
45x - 45 = 18x + 90 Subtract 18x from both sides
<u>-18x -18x</u>
27x - 45 = 90 Add 45 to both sides
<u> +45 45</u>
27x = 135
x = 5
But that's not the answer (even though it is correct). You want BD
BD = 3x - 3
BD = 3*5 - 3
BD = 15 - 3
BD = 12
Multiply all the numbers to get 16 1/4
This is a slope intercept equation, y = mx + b. You want to get the y value by itself, so move the -3x to the other side for an equation of 2y = 3x-24. Next you have to get y by itself, so divide away the two, and divide every other value by two also, getting y = 3/2x -12. This should be your solved equation
it is C because x dont reapeat