Calla bought 8 writing utensils for a total of $30. Pens cost $4 each and pencils cost $3 each. How many pens did she buy?
1 answer:
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Answer:
If there are 2 quarters for every 3 nickels,
then there are quarters.
If there are 2 dimes for every quarter,
then there are dimes.
If the number of pennies and nickels together are equal to the number of dimes, then there are pennies.
Answer:
13
Step-by-step explanation:
First drop the line.
How many units is it from Point r to the x axis?
12.
How many units is it from Point r to the y axis?
5.
Now we can use the Pythagorean Theorem.