magmoo3779
27.11.2021 •
Mathematics
Given: p || r, 21 and 23 are supplementary
Prove: q || r
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Ответ:
There are 3,900 tickets of $28 each and 1,100 tickets of $40 each sold.
Step-by-step explanation:
x = the number of $28 tickets
y = the number of $40 tickets
x + y = 5000
28x + 40y = 153200
x = 3,900 tickets
y = 1,100 tickets