Answer:
Step-by-step explanation:
⟾Collect like terms
- 8x - 10x = x - 45
⟾Move the variable to the left
- - 2x = x - 45
⟾Collect like terms again
- - 2x - x = - 45
⟾Divide both sides by -3
- - 3x = - 45
⟾ x = 45 ÷ 3
- x = 15.
Hope it's helps you
Please answer the question correctly with factual information for brainliest.
1 answer:
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Answer:
Yes
Step-by-step explanation:
the function that gives the alcohol level is:
where x is the number of hours.
we need to know if after 4 hours an average person is legally drunk, thus:
and we substitute this in the function:
solving these operations we obtain:
the alcohol level after 4 hours is 3.24.
Since a person is considered to be legally drunk if the level exceeds 1.5, and we obtained 3.24 which is greater than 1.5, a person who has been drinking for 4 hours under the conditions indicated by the problem would be considered legally drunk.