Please help with this math

Mathematics

1 answer:

e-lub [12.9K]3 years ago

7 0

I think it's 5 because 15 divided by 3=5

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−62 − (−25)= A) (-87) B) (-37) C) 37 D) 87

vaieri [72.5K]

The answer is B) (-37)

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3 years ago

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Una cadena de oro es de ley 0,850 y contiene 12 gramos de oro puro. ¿Cuánto pesa la cadena de oro?

Harrizon [31]

What are you doing this is not understood

4 0

3 years ago

Me ajudaa por favor, é urgente

Zigmanuir [339]

Answer: x=16 kg.

Step-by-step explanation:

$\displaystyle\\x+x+\frac{1}{2}x=40\\\\ 2\frac{1}{2}x=40\\\\\frac{(2*2+1)}{2}x=40\\\\ \frac{5}{2} x=40\\\\Multiply\ both\ sides\ of\ the\ equation\ by\ 2:\\\\\frac{5}{2}x*2 =40*2\\\\5x=80\\\\Divide\ both\ sides\ of\ the\ equation\ by\ 5:\\\\x=16\ kg.$