I need a complete answer for the entire thing (Please Help)

14 1/2

Step-by-step explanation:

Ok let's get started!

First things first...

Let's see what information we have!

Monday practice: 2 1/2 hours

Tuesday practice: 1 3/4 hours

Wednesday practice: 3 hours

First Step:

We need to put each fraction in improper form, so now it will look like this:

Monday practice: 5 / 2 hours

Tuesday practice: 7 / 4 hours

Wednesday practice: 12 / 4 hours

Now why did I put the Wednesday practice in terms of 4? Because we need to find a common denominator and that will be 4 so I made life easier and did it ahead of time!

Second Step:

We now need to put the Monday practice hours with a denominator of 4.

So we need to multiply the denominator by 4 and will do the same for the numerator so now we get:

5*2 / 2*2

Which is 10 / 4!

(hour)

Third Step:

Now we need to add a weeks worth of practice!

10 / 4  +  7 / 4  +  12 / 4 =  29 / 4

So, in a week Cory practices 29 / 4 hours, that's a lot!

Fourth Step:

Now we must find how much she does in 2 weeks. To do so we will do something a little more different then usual. We are going to put 29 / 4 in mixed number form. We will get 7  1/4.

Fifth Step:

Last step!

We will multiply 7 and 1/4 by 2,

7*2 and 1 / 4*2 =

14 and 2 / 4

Now we can still simplify 2 / 4 down to 1 / 2.

So our answer is

14 1/2

Sixth Step:

I lied there is one more step

REJOICE

We got through the math problem WHOOP! WHOOP!

idk

step-by-step explanation:

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.