Katrina is driving to her grandparents' house. The distance, y miles, she has left to go after driving for hours is given by f(x
) = 400 – 60x. After driving for 3 hours, how many miles will Katrina have left to go?
1 answer:
Answer:
Step-by-step explanation:
Jenna will complete remaining distance in 6 hours.
Since we know that . Let us find the rate at which Jenna traveled 100 miles.
Remaining distance is 400-100=300.
Now let us find the time Jenna will take to travel 300 miles.
Therefore, Jenna took 6 hours to complete remaining distance.
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Step-by-step explanation:
12 girls out of 19, how many out of 76
12 - x
19 - 76
Cross product:
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/19. /19
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Answer:
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Step-by-step explanation:
Answer:
a = 15
Step-by-step explanation:
Given
3a + b = 54 ← substitute b = 9
3a + 9 = 54 ( subtract 9 from both sides )
3a = 45 ( divide both sides by 3 )
a = 15
18 because it has equal so that means that you divide
