Riley is deciding between two cell-phone plans. One plan charges a monthly fee of $9.99 and 5 cents per minute for calls, while the other plan does not have a monthly fee but charges 9.5 cents per minute for calls. The two lines in the graph below constitute an approximate representation of the two plans, where y represents the cost of a plan for a month in which x minutes are used. Based on the graph, approximately how many minutes must Riley use in a month for the cost of the two plans to be the same?

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )