For the following​ problem, complete the table to the right. Then solve the problem using a system of equations. A person wishes to mix coffee worth ​$9 per lb with coffee worth ​$3 per lb to get 90 lb of a mixture worth ​$5 per lb. How many pounds of the ​$9 and the ​$3 coffees will be​ needed?

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

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.