# High School Math

MISSION STATEMENT: To encourage and promote a greater use of the internet and computer technology in the math classroom. For educators, students, parents and homeschoolers.

## Wednesday, March 16, 2005

### Flowers

3 Roses and 4 Tulips cost \$4.70.
2 Roses and 2 Tulips cost \$2.80.
Find the cost of one of each.

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Purchases/Quiz. Then click on any question,
or its steps, to see the full solution.

### The Race

A car travels 10 mph faster
than a motorcycle.
They start 155 miles apart and
meet in 2.5 hours.
Find the speed of each one.

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Motion/Quiz. Then click on any question,
or its steps, to see the full solution.

### Money!

A man invested \$3400 in two parts.
The part invested at 4% has a profit.
The part invested at 3% has a loss.
His net worth was \$73
How much is invested at each rate?

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Investments/Quiz. Then click on any question,
or its steps, to see the full solution.

### The Angles

The three angles of a triangles
are in the ratio 4 : 3 : 5.
Find the number of degrees in each angle.

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Ratios/Quiz. Then click on any question,
or its steps, to see the full solution.

### How Old?

Lori is 4 times as old as June.
But, 9 years from now,
Lori will be 3 times as old as June.
How old is each now?

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Ages/Quiz. Then click on any question,
or its steps, to see the full solution.

### The Triangle

The base of a triangle
is 4 inches less than 3 times the height.
The area is 7.5 sq. inches.
Find the base and height.

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Geometry/Quiz. Then click on any question,
or its steps, to see the full solution.

### Money Forever

A man wishes to receive \$700 every half year, starting one half year from today, forever. At 6% p.a. compounded half-yearly, what amount must he invest today, to make this possible?

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Money/Perpetuity/Quiz. Then click on any question,
or its steps, to see the full solution.

### Two Numbers

Two numbers sum to 10.
And 7 times the first plus
4 times the second is 58.
Find the two numbers.

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Numbers/Quiz. Then click on any question,
or its steps, to see the full solution.

### The Gears

The speed of a gear, S, varies
inversely as the number of teeth, T.
If a gear with 4 teeth goes 54 rpm,
how fast will a gear with 8 teeth go?

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Variation/Inverse/Quiz. Then click on any question,
or its steps, to see the full solution.

S1 / S2 = T2 / T1
54 / S2 = 8 / 4
(8)(S2) = (54)(4)
S2 = (54)(4)/(8)
S2 = 27
Thus S=27 rpm when T=8 teeth.

## Tuesday, March 15, 2005

### Jar of Coins

A jar contains \$2.75
in nickels and dimes.
There are 39 coins in all.
How many of each are there?

If you need help click     www.TheMathWebSite.com
and on the index of topics page click
Word Problems/Coins/Quiz. Then click on any question,
or its steps, to see the full solution.