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# 1Math 50 : Elementary Algebra - page 2 / 15

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(d)

the quotient of two and the sum of a number and five.

(e)

a number multiplied by the difference between twice the number and nine.

(f)

A wire whose length is given as x inches is bent into a square. Express the length of a side of the square in terms of x.

(g)

The sum of two numbers is 20. Express the two numbers in terms of the same

variable.

(h)

Twelve more than a number added to the difference between the number and

six.

14.

Simplify .

15.

Simplify .

16.

Simplify  -3 [ 2x - (x+7) ].

17.

Two joggers start at the same time from opposite ends of an 8-mile jogging

trail and begin running toward each other. One jogger is running at a rate of

5mph, and the other jogger is running at a rate of 7 mph. How long, in

minutes, after they start will the joggers meet? ( Use d = rt. )

Jogger A  |                                                                      | Jogger B

18.

A drawer contains 41 cents and 7 cents stamps. The number of 41 cents stamps is four less than three times the number of 7 cents stamps. The total value of all the stamps is \$4.86. How many 41 cents stamps are in the drawer?

Stamps

Number

Value in cents

= Total value

41 cents

41

7 cents

7

Total

486

19.

The perimeter of a triangle is 35 ft. One side of the triangle is 1 ft longer than the second side. The third side is 2 ft shorter than the second side. Find the length of each side.

The second side = x ft

( Use x to express the first side and the third side.)

The first side =

The third side =

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