The total cost of four pens and seven mechanical pencils is $13.25. The cost of each pencil is 75 cents.
1 answer:
You might be interested in
There are special properties to certain right triangles.
A 3-4-5 triangle will always be a right triangle. 9 divides into 3, and 15 divides into 5, so you can use ratios to find b.
Since 9 divides into 3, we will use this to set up proportions for the missing value:
Cross multiply the fractions.
Divide both sides by 3.
The missing value is 12.
A 3-4-5 triangle will always be a right triangle. 9 divides into 3, and 15 divides into 5, so you can use ratios to find b.
Since 9 divides into 3, we will use this to set up proportions for the missing value:
Cross multiply the fractions.
Divide both sides by 3.
The missing value is 12.