Por tres kilos de naranjas y dos de peras he pagado 7,30 € ¿A cómo está el kilo de cada una de las frutas, si el de peras es 40 céntimos más caro que el de naranjas?
problema de algebra

mnkjn

step-by-step explanation:

i'm a sophomore in connections, i'd recommend checking on jishka.com they have a large range of questions and answers from our school.

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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step-by-step explanation:

hihi so drawing these 2 triangles is fairly simple. all that's left is finding the height of each one. luckily, we have a side length and an angle, so there is a trig function we can use to solve for the height. the easiest one to use would be tangent, since we have 2/3 things needed to find and the third needed is what we are solving for. tan(73°) * 30 ~= 98.13 and tan(73°) * 35 ~= 114.45