16
––
30
because there are 30 inches in all and 16 out of the 30 are concrete
<span> 166cm would be your answer.</span>
Por un sistema de ecuaciones, tiene-se que:
- Cada lapiz cuesta 20 ptas.
- Cada boligrafo cuesta 50 ptas.
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- Considera-se un sistema de ecuaciones, con cada boligrafo custando x y cada lapiz custando y.
- <u>Boligrafo cuesta 30 mas que un lapiz</u>, o sea,

- <u>8 boligrafos y 15 lapices cuesta 700</u>, o sea,

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- Aplicando el <u>primer ecuación en la segunda, </u>tiene-se el cuesto de cada lapiz:






Cada lapiz cuesta 20 ptas.
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Por fin, el cuesto de cada boligrafo es dado por:

Cada boligrafo cuesta 50 ptas.
Un problema similar es dado en brainly.com/question/24637096
<span>It is absolutely impossible to draw a triangle of sides 150 , 10 and 10 cm. With one side so large, it is impossible, which will make the two angles two small to intersect and the angle will be < 0, which is not possible in a triangle.
i hoped this helped </span>
Answer:
D
Step-by-step explanation:
2x-5=9
add 5 to both sides
2x=14
divide by 2 on both sides
x=7