Answer:
<em>72 passenger planes</em>
Step-by-step explanation:
ratio passenger to cargo = 8 to 5 = 8/5
Let p = number of passenger planes.
The ratio of passenger to cargo planes that actually landed is p/45.
The ratio in general is 8/5, so 8/5 must equal p/45.
p/45 = 8/5
5p = 45 * 8
p = 9 * 8
p = 72
Answer:
R, in beats per minute, can be approximated by the formulas, where a represents the person's age.
where R= 143 - 0.65a for women.... (1)
and R= 165 - 0.75a for men,..... (2)
So by implementing these two equation we get a = 40
So the age will be 40 years old
know more about “Mathematical Equation” here: brainly.com/question/1214333
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Answer: I think it’s $4.50
Step-by-step explanation:
The equation is 6x+18=48 so you want to cancel out 18. Subtract 48-18 and you end up with 6x=27. Divide 27 by 6 and you get 4.5