4 unknowns needs 4 equations. I'll call the unknown numbers a,b,c,d in that order left to right.
4 + a = b
a + b = c
b + c = d
c + d = 67
let's use substitution to get rid to combine equations and get rid of variables.
If a + b = c then a = c - b
4 + (c - b) = b
4 + c = 2b
If b + c = d then b = d - c
4 + c = 2(d - c)
4 + c = 2d - 2c
4 + 3c = 2d
then we have c + d = 67 so c = 67 - d
4 + 3(67 - d) = 2d
4 + 201 - 3d = 2d
205 = 5d
d = 41
Should be easy now, subtract backwards.
67 - 41 = 26
41 - 26 = 15
26 - 15 = 11
15 - 11 = 4
4, 11, 15, 26, 41, 67
Answer: 48 kilogramos de fruta
Step-by-step explanation:
Hola, para resolver este problema simplemente hay que sumar las cantidades de cada fruta:
Kilos de manzanas + kilos de mangos+ kilos de naranjas:
Matemáticamente hablando:
34+12+2 = 48 kg
Elena compro 48 kilogramos de fruta en total.
Si quedo alguna duda no dudes consultar con un comentario.
The correct answer would be C
Hope this helped
Hey!
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Polygon: Heptagon
Vertices: 7
Sum of angles: 900°
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Solution:
158 + 120 + 139 + 121 + 125 + 126 = 789
900 - 789 = 111°
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Answer:
x = 111°
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Hope This Helped! Good Luck!
Answer:
B
Step-by-step explanation:
11/4=2.75
3/4=0.75
5/4=1.25
23/4=5.75