First, "the sum of a number and four" is x+4.
Three times (x+4) is 3(x+4). It's also the left side of the equation.
Second, "five times the number" is 5x.
The result will then be "decreased by two", which is 5x-2. It's also the right side of the equation.
Therefore, option (1) is the correct answer.
Hope this would help :))
Answer: x=(6+√196)/4, (6-√196)/4
Step-by-step explanation:
the amount of time of the two trips is a proportional relationship
<h3>What is proportional relationship?</h3>
mathematical expressions are said to be proportional if there unit rate are equal. this means that the expressions will give similar results when similar values are substituted into the equation.
<u>solution:</u>
Driving 7 hrs within 385 miles represents a unit rate of 385 / 7 = 55 miles per hour or 55 mph
while 3 hrs in 165 miles represents a unit rate of 165 / 3 = 55 mph
since both situations gave similar speed in miles per hour they are said to have a proportional relationship.
Read more on proportional relationship here: brainly.com/question/12242745
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Answer:
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Step-by-step explanation:
microwave