tintlemax6256
19.11.2020 •
Mathematics
hannah's allotment is a rectangle and has an area of 188m². if the length of the allotment is 12m, what is its perimeter? give your answer in metres (m).
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Ответ:
P = 55.33 meters
Step-by-step explanation:
A=188(m^2)= L*W
L=12m
A/L=W
(188/12) meters=W=47/3
P=2W+2L
P=2(12m) + 2(47/3 m)
= 24 + 94/3 meters
P = 55.33 meters
Ответ:
a. 800 litros
b. 500 litros
Step-by-step explanation:
Aquí, se nos dice que 1/4 del total se usa para lavar la ropa.
Lo que queda sería 1-1 / 4 = 3/4 Fuera de esto, 5/6 se usa para cocinar.
La fracción utilizada para cocinar es 5/6 * 3/4 = 15/24 = 5/8
Y todavía nos quedan 100 litros.
La cantidad utilizada ya sería 1/4 + 5/8 = (2 + 5) / 8 = 7/8
Entonces la fracción no utilizada = 1-7 / 8 = 1/8
Ahora, es este 1/8 que corresponde a 100 litros.
Digamos que el volumen total es x litros inicialmente, Eso significa 1/8 * x = 100 x / 8 = 100 x = 800 litros
La fracción utilizada para cocinar es 5/8 del total, por lo que el valor sería 5/8 * 800 = 500 litros