Topic: Pre-algebra homework help?**Question:**
At 2 P.M, a flag pole casts a shadow that is 155% of its actual height. If the shadow is 23.25 ft, what is the actual height of the pole?

April 22, 2019 / By Trudi

First of all, divide the 23.25 by 155 to get the ft. Per percent. 23.25/155 = .15. Then multiply .15 by 100 to get the full 100 percent of the pole's height. .15 x 100 = 15. Your answer is the actual height of the pole is 15 feet!

👍 246 | 👎 9

Did you like the answer? All you're doing is getting the variable you want by itself, isolating it. You do this by performing additions/subtractions and multiplications/divisions to each side of the equation. Just take them slow, and do one number or letter at a time like this: 2) 2x + 75 = 102 - x x + 2x + 75 = 102 - x + x 3x + 75 = 102 3x + 75 - 75 = 102 - 75 3x = 27 3x / 3 = 27 / 3 x = 9 4) 3pq/r = 12 r * 3pq/r = 12 * r 3pq = 12r 3pq / 3 = 12r / 3 pq = 4r pq / q = 4r / q p = 4r/q

The directions just say Solve each equation. If you could answer any of these it would be a great help! Thanks 1. 4n + 20 = 53 - 2n 4n + 2n = 53 – 20 6n = 33 n = 33/6 = 11/2 2. 2x + 75 = 102 – x 2x + x = 102 – 75 3x = 27 x = 27/3 = 9 The directions for the next one says Solve each equation or formula for the specified variable. Oh btw. n/m means like n over m. Just to make that clear lol 3. s/2t = 10, solve for t s/10 = 2t t = s/20 4. 3pq/r = 12, solve for p 3pq = 12r p = 12r/3q = 4r/q 5. 3(2j - k) = 108, solve for j 6j – 3k = 108 6j = 3k + 108 j = (1/2)k + 18 6. 3.5s – 42 = 14t, solve for s 3.5s = 14t + 42 s = (14t + 42)/3.5 = 4t + 12

The answer is 15 ft. You can find this by setting up a proportion. 23.25 over "x" is equal to 155 over 100. Multiply, and divide and there is your answer(:

👍 100 | 👎 1

155 23.25 ___ = ___________ 100 15 is the answer! 100 x 23.25 = 2325 2325 / 155 = 15

👍 92 | 👎 -7

x + y = 32, x = 32 - y x = 5y + 2 32 - y = 5y + 2 30 = 6y y = 5 x = 32 - 5 = 27

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