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ikadub [295]
2 years ago
11

One number is 3 times another. If the sum of the two numbers is 15, find the two numbers.

Mathematics
2 answers:
gregori [183]2 years ago
8 0

Answer:

15/4 and 45/4

Step-by-step explanation:

Let x and y be the numbers

x = 3y

x+ y = 15

Substitute the first equation in to the second equation

3y+y = 15

4y = 15

y = 15/4

x = 3(15/4)

x = 45/4

The two numbers are 15/4 and 45/4

Vinvika [58]2 years ago
6 0
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| 3 |  

| 3 | 6

| 2 | 7

| 1 | 8

+ | | 9

| 9 | 0:

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