darrengresham999
21.12.2019 •
Mathematics
What is 0.28 as a fraction in its lowest term
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Ответ:
Answer is 28/100
Step-by-step explanation:
The top 2 are idiots
Ответ:
To solve this, we will write and solve a pair of linear equation. A will represent the cost of an adult ticket and c will represent the cost of a children's ticket.
We have:
3a + 4c = 87
2a + 3c = 62
We can multiply the top equation by 2 and the bottom equation by -3.
We will have:
6a + 8c = 174
-6a + -9c = 186
Adding them gives us:
-1c = -12
or just c = 12
Substitute in 12 for c and we will find that a = 13
3a + 48 = 87
3a = 39
a = 13