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justnbri
27.06.2020 •
Mathematics
Carolina y su mamá compraron tres tortas de sabores diferentes para la reunión con sus amigos del colegio. De la torta de naranja se comieron 0,7 partes; de chocolate 9/12 partes y de vainilla 6/8 partes. Si todas las tortas tienen la misma forma y tamaño y cada torta la partieron en diferentes porciones, ¿ en total cuánta torta se comieron carolina y sus amigos?
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Ответ:
2 1/5 partes de torta
Step-by-step explanation:
Para contestar esta pregunta debemos sumar cada parte de torta:
0.7+9/12+6/8 =
Convertimos las fracciones en decimales, para tener todos los valores expresados de la misma forma. Dividiendo:
9/12=0.75
6/8=0.75
Sumamos :
0.7+0.75+0.75 = 2.2 partes = 2 1/5 partes
En conclusión, Carolina y sus amigos comieron 2 1/5 partes de torta.
Ответ:
1)![y =\±75\\\\x =\±75](/tpl/images/0449/9910/fda28.png)
2)![r= 75\ miles](/tpl/images/0449/9910/2af70.png)
3)![A = 17,671.46\ miles ^2](/tpl/images/0449/9910/ec90b.png)
Step-by-step explanation:
The general equation of a circle has the form:
Where r is the radius of the circumference.
In this problem we have the circle with equation
1) The intercepts with the x-axis we find them doing y = 0 and solving for x:
The intercepts with the y-axis we find them doing x = 0 and solving for y:
The 4 interceptions are:
2) The radius is:
3) The area of a circumference is: