5)

\

The equations are

\

$\"\"$

\

Simplify.

\

$\"\"$

\

The values of $\"\"$

\

6)

\

The equations are

\

$\"\"$

\

Simplify.

\

$\"\"$

\

The values of $\"\"$

\

7)

\

The equations are

\

$\"\"$

\

Simplify.

\

$\"\"$

\

The values of $\"\"$

\

8)

\

The triangle perimeter is $\"\"$

\

Consider the rightangle triangle is $\"\"$

\

The length of longest side is 4 cm less than the sum of the length of the other sides.

\

Let,

\

$\"\"$

\

Then,

\

$\"\"$

\

Twice the length of the shortest side is 9 cm more than the difference between the lengths of the other sides.

\

Let,

\

$\"\"$

\

Then,

\

$\"\"$

\

$\"\"$

\

Substitute $\"\"$ in $\"\"$

\

$\"\"$

\

The sum of the shortest lengths of the two sides is $\"\"$

\

Then

\

$\"\"$

\

The lengths of each side of the triangle is

\

$\"\"$

\

9)

\

Step 1:

\

Ms.Thompson has one dollar, five dollar, and ten dollar bills.

\

It totally is $\"\"$

\

She has the same number of five dollar bills as one dollar, and ten dollar bills put together.

\

She has $\"\"$ bills in all.

\

Find the how many bills of each denomination does she have.

\

Consider the Option method.

\

Totally she has $\"\"$ bills and $\"\"$

\

$\"\"$

\

Solution:

\

She has totally bills of each denomination is

\

$\"\"$