Acopy machine makes 60 copies per minute. a second copy machine makes 80 copies per minute. the second machine starts making copies 2 minutes after the first machine starts. both machines stop making copies 8 minutes after the first machine started. together, the 2 machines made how many copies?

m 960 copies

Step-by-step explanation:

The first maching was working 8 minutes this means that it produced

60 copies /minute* 8minutes = 480 copies

teh second maching was operated during 6 minutes so it made

80 copies/minute *6 minutes = 480 copies

The total copies from the two machines were 960.

-2 is the right

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.