Tanya have several different ways she likes to walk home. one route takes 20 minutes, two of the routes take 30 minutes, and two take 40 minutes. tanya randomly chooses a route to walk home. what is the probability, to the nearest percent, that it will take her 30 minutes to walk home?
a.) 20%
b.) 33%
c.) 40%
d.) 67%

explain answer for me : )

40%

Step-by-step explanation:

Tanya has a a choice of 5 different routes (1-20 mins, 2-30 mins, 2-40 mins).

How many routes can she take that will take her 30-mins to get home?

The answer is 2.

What's the probability she will take 2 of the 5 routes to get home?

The probability is 2/5 so 40%.

The rounding instruction was there to mislead you in this case :-)

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.

a) 7x=7

step-by-step explanation: