Pre-algebra

The ramp shown below is used to move crates of oranges to loading docks at different heights. When the horizontal distance AB is 15ft, the height of the loading dock, BC, is 3ft. What is the height of the loading dock DE?
-5
-8
-9
-25
My answer: 5
Diagram: a Right triangle, a line through the triangle so it is ABC and then the other side is BCDE. (ABC looks like a right triangle and BCDE looks likea trapazoid kinda. Sorry if this doesnt make sense.)

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  1. the answer is 8 ft

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  2. Is that true? @unknown

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  3. yea unknown is right I just took the test

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  4. I'm not sure if the answer is 8 ft, but once I get my answers, I'll help.

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  5. The answer is 8 ft. I also have the short answer questions, so I will give the answers that I put.

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  6. For 17:
    10+6=16
    Place a proportion: 10/16 and 6/16.
    Multiply: 10*112 and 6*112.
    Next, divide both by 16.
    70/42=10/6.
    70*6=420 and 42*10=420.
    420 is equal to 420.
    So, there will be 70 white golf balls and 42 striped golf balls.

    Also, don't copy and paste, because you could get in trouble. Type it out in your own words.

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  7. For 18:
    Multiply all coordinates by 2
    V= (12,4)
    W=(-4,8)
    X=(-6,-4)
    Y=(6,-10)

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  8. For 19, the polygons are not similar. I couldn't find any number to multiply by 8 and 5.2, so I think they are not similar. I hope I helped someone today, and good luck with the rest of your test. I will not put out the multiple choice answers because the questions are different for everyone.

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  9. I’ll put my awnsers on here for anyone who needs it when I’m finished with the test

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  10. 1- A 3:1
    2 - A p = 5.25
    3 - B 59 inches
    4 - B 37.21
    5 - C 6.3
    6 - I got wrong so i don’t know
    7 - C 13 inches
    8 - B 15 ft
    9 - B 80 cm
    10,11 - I got wrong so i don’t know
    12 - D 1/4
    13 - C 45 ft x 37.5ft
    14 - C 1.25 in x 1.75 in
    15- A 157.5 miles
    16 - 8 feet
    17-19 look at the awnsers above me
    Your welcome

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  11. huggy wuggy i love you

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