F(a) = 2a + 3; find f (7)
1 answer:
You might be interested in
Let the equal sides of the isosceles Δ ABC be x.
Given that the perimeter of Δ ABC = 50m.
Therefore, 2x + AC = 50 --- (1)
It is also given that the perimeter of Δ ABD = 40m.
Therefore, x + BD + AD = 40
BD is the median of the Δ ABC. Therefore, D is the midpoint of AC.
So AD = CD.
Or, AD = AC
Therefore,
Multiply both sides by 2.
2x + 2BD + AC = 80
From (1), 2x + AC = 50.
Therefore, 2BD + 50 = 80
2BD = 80 - 50
2BD = 30
BD = 15m.
1 second = 2 megabytes
2 seconds = 4 megabytes
Step-by-step explanation:
Given,
Time taken to download 5 megabytes = seconds
Multiplying both sides by to find unit rate
1 second = 2 megabytes
2 seconds = 2*2 megabytes
2 seconds = 4 megabytes
Keywords: fraction, multiplication
Learn more about fractions at:
#LearnwithBrainly