Videos Test Yourself Wordcipher MathFacts Math Diagnostics Math Tricks Daily PhysEd
Class Photos Worksheets Math Genius More Resources Teacher Timesavers Study Guides
NAPA Car Parts
Thanks Garage

sparkplug
Answer:
19 tires for $950.00
1 wiper blade for $10.00
80 spark plugs for $40.00

John E says
15 tires at $750 total,
20 blades at $200 total,
100 plugs at $50 total = $1,000.

AI answer
Let x be the number of tires, y be the number of wiper blades, and z be the number of spark plugs.
We know that the mechanic buys 100 car parts,
so x + y + z = 100.
We also know that he spends $1000,
so 50x + 10y + 0.5z = 1000.
Solving this system of equations, we get x = 10, y = 10, and z = 80. Therefore, the mechanic buys 10 tires, 10 wiper blades, and 80 spark plugs.

Brain Teaser Of The Day

How Brain Teasers Help You

Stimulate your brain cells.
Improve your concentration.
Increase your fluid intelligence.
Reduce brain deterioration.


Fill in the form below.
Receive one brain teaser a day.
Enter your email here.

Click Here
  Subscribe   

We take your privacy very seriously.
Your information is never sold or shared.

Wordgames

Try More Math Puzzles