The cost of 2 bottles of water and 3 bags of pretzels is $7.05.The cost of a bag of pretzels is $1.35.Write a system of equations to represent this situation. How should I solve this?

The equation is 2x + 3y =$7.05

How you solve it is down below

Step-by-step explanation:

So, 2 bottle of water and 3 bags of pretzels. (yumm)

The total cost is $7.05

You don't know how much each bottle or bag cost (yet) so replace the costs with variables. Now we need to write in equation form.

2x + 3y =$7.05

Then they give you the cost of each bag of pretzels ($1.35)

Substitute the 1.35 for y

2x + 3(1.35) = 7.05

2x + 4.05 = 7.05

     -4.05    -4.05

2x = 3

2x/2 =3/2

x = 1.50

Now substitute 1.50 for x ( just to check)

2(1.50) + 3(1.35) = 7.05

3+ 4.05 = 7.05

7.05 =7.05

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.