30 33 -----= ---- 100 ? To find this we need to find what makes 30 into 33. 33 divided by 30=1.1 To find ? we need to reverse since it's on the other side. 100 x 1.1=110 110 dresses in total.
When ever you are asked to draw a line that goes through a given point you should use point slope formula or . In this problem you are asked to go through point (-3, -9) while being parallel to 3x+4y = 7.
Start by converting 3x+4y = 7 into slope intercept form (y = mx + b). To do this you first need to move 3x to the other side of the equation: 4y = -3x + 7. Then divide by 4 to get y alone: .
Next, start plugging the numbers into the point slope formula given above, where is -9, is -3, and is . Your equation should look like this when you're done: .
When you subtract a negative you add so your equation becomes: .
You then need to distribute the into the and you should end up with something like this:
Finally, subtract the 9 from the left side and you have your answer: