Answer:
5x + 1
Step-by-step explanation:
-5x - 1
to make -5x positive you have to divide both sides by -1
5x + 1
Hope this helps!!!
Answer:
$9.75
Step-by-step explanation:
To get from 4 to a dozen, you have to multiply by 3.
3.25 x 3 = 9.75
Answer:
The scale factor is 1/2
Step-by-step explanation:
The coordinates of Point G are (4,6) and the coordinates of Point G' are (2,3). To get from 4 to 2 and 6 to 3, you have to multiply by 1/2. Therefore, the scale factor is 1/2.
Step-by-step explanation:
the change in cost of 145-135.50 = 9.50 for an increase of students from 25 to 30. The ratio of change of cost to change of students = 9.50/5 = 1.9 and becomes the slope coefficient "m" in the formula y= mx + b. y = the total cost, mx becomes the variable cost and b becomes the fixed cost. To find b, use the data point given where the total cost = $135.50 when the students = 25, or 135.50 = 1.9*25 +b. Solving for b yields $ 88. Note that the other data point is where the total cost is $145 for students = 30. Using the new total cost equation shows that 30*1.9+88= 145
Slope formula y2-y1/ x2-x1 = 3/5
