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Elenna [48]
3 years ago
9

Rita ha decidido emprender un negocio de ventas de productos de protección personal, para lo cual tiene que inventir 1/3 de su d

inero en mascarillas, 4/15 en guantes, 1/10 en protección facial y el resto en alcohol. ¿Que fracciónde dinero se invierte en alcohol?
Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

Answer:

3/10

Step-by-step explanation:

Subtract the sum of 1/3, 4/15 and 1/10 from 1:

                                 10/30 + 8/30 + 3/30 = 21/30, or 7/10

                                   Then:  1 - 7/10 = 3/10

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To get the vertex of the parabola we proceed as follows;
y=-7(x-4)^2-5
The above can be written as:
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