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Vika [28.1K]
3 years ago
9

How many steel rods are in a staircase frame with 20 steps?

Mathematics
2 answers:
lys-0071 [83]3 years ago
5 0

Answer:

There would be 300 steel rods in a staircase frame with 20 steps.

Step-by-step explanation:

For 1 step there would be 15 steel rods.

So all we have to do is multiply 15 by the 20 steps.

15 * 20 = 300

So the answer is 300 steel rods.

Hope this helps! :)

inysia [295]3 years ago
5 0

Answer: It would be 300 steel rods cause you do 15 times 20 which is 300

Step-by-step explanation: I know cause the math was really easy

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A) 2L + 2W = 48
B) L * W = 140
B) W = 140 / L
Inputting this to equation A)
A) 2L + 2*(140 /L) = 48
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Multiplying both sides by "L"
L² + 140 = 24L
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(L -10) * (L-14) = 0
L= 10
L = 14
If length = 10 then width =14
If length = 14 then width = 10


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