Answer:
=3/4
Step-by-step explanation:
3 (c+d) 2c-2d
-------------- * -------------
(c-d) 8c+8d
Factor the right had term. The numerator can factor out a 2 and the denominator can factor out an 8.
3 (c+d) 2(c-d)
-------------- * -------------
(c-d) 8(c+d)
We can cancel the (c+d) in the numerator the left and the denominator on the right. We can cancel the (c-d) in the numerator on the right and the denominator on the left
3 2
-------------- * -------------
1 8
We can divide the fraction on the right by 2 on the top and bottom.
3 1
-------------- * -------------
1 4
=3/4
-24 + 12d = 2(d - 3) + 22
-24 + 12d = 2d - 6 + 22
-24 + 12d = 2d + 16
12d = 2d + 40
10d = 40
d = 4
Hope this helps.
Answer:
$24.7
Step-by-step explanation:
Discount: 65(.62)=40.3
Cost: 65-40.3=24.7
First, start off by finding your slope. Your slope will be change in Y divided by change in X, which would be Y2-Y1/X2-X1.
3- -1/ 2-0
Since you're subtracting a negative, that turns into addition.
4/2 = 2
Now you know your slope is 2. Next you can use your equation y=mx+b to find your b, or your y intercept. You can use one of your two pairs of points to plug in x and y. Plug your slope in for m as well.
Y=mx+b
3 = 2(2) + b
3 = 4 +b
-4 -4
-1 = b
Now you can plug in your y intercept and slope for your equation!
Y=2x-1
