Question

How do you find the multiple of 15 by 9 using the multiple of 5 by 9 and 15 by 3?

a) 5 * 9 +15 *3
b) 5 * 9 / 15 * 3
c) 5 * 9 * 15 * 3
d) 5 *9- 15 *3

Answer 1

To find the multiple of 15 by 9 using the given multiples, sum the product of 5 by 9 and the product of 15 by 3, which yields a total of 90.

Step-by-step explanation:

To find the multiple of 15 by 9 using the multiple of 5 by 9 and 15 by 3, you can add these two products together:

a) 5 * 9 + 15 * 3

First, calculate the multiples individually:

• 5 * 9 = 45
• 15 * 3 = 45

Then, add the results:

45 + 45 = 90

So, the multiple of 15 by 9 is 90, which you can get by summing the product of 5 by 9 and the product of 15 by 3.