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miahbaby2003p2af1b
29.10.2021 •
Mathematics
Can someone please help me ASAP
Solved
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Ответ:
Cost of 1 hamburger = $1.3
Step-by-step explanation:
Assume;
Cost of 1 hamburger = a
Cost of 1 French fries = b
On first trip
3a + 4b = 7.10eq1
On second trip
2a + b = 3.40eq2
From eq2 x 4
8a + 4b = 13.6eq3
From eq3 - eq1
5a = 6.5
a = 1.3
Cost of 1 hamburger = $1.3