Irina has 10 coins, all nickels and dimes, worth a total of $0.70. This is shown by the system of linear equations, x + y = 10 and 0.05x + 0.1y = 0.7, on the graph. A coordinate grid showing Irina's Change with Number of Nickels on the x-axis and Number of Dimes on the y-axis with 2 lines. The first line passes through (0. 10) and (8, 4). The second line passes through (0, 7) and (8, 4).
How many nickels does she have?

4
6
7
10

the science club has 42 people and the robotics club has 33

step-by-step explanation:

$6.42

step-by-step explanation:

i think the answer is c sorry if it's wrong

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.