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Sonbull [250]
3 years ago
6

486.4 rounded to nearest whole number

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0
486

1234 STAYS THE SAME


56789 ROUNDS UP
PIT_PIT [208]3 years ago
3 0

486 is the closest when rounded to the nearest whole number
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Un padre para estimular a su hijo para estudiar matemáticas le dice: por cada ejercicio que resuelvas bien te daré 7 € y por cad
Naya [18.7K]

Answer:

8 ejercicios

Step-by-step explanation:

De acuerdo a la información dada, puedes plantear las siguientes ecuaciones:

x+y= 45 (1)

7x-1y= 19 (2)

x= ejercicios que resolvió bien

y= ejercicios que resolvió mal

Primero, puedes despejar x en (1):

x= 45-y (3)

Segundo, debes reemplazar (3) en (2):

7(45-y)-1y=19

315-7y-1y= 19

315-8y= 19

315-19= 8y

296= 8y

y= 296/8

y= 37

Tercero, debes reemplazar el valor de y en (3) para encontrar x:

x= 45-37

x= 8

De acuerdo a esto, la respuesta es que el hijo ha resuelto bien 8 ejercicios.

8 0
3 years ago
I need help with this question and no links or I will report you
dem82 [27]
A: 0.748≈0.75(.88x.85)
B.1.63 (.88x1.85)
4 0
3 years ago
Maradee works at Cox's Jewelers for $7.50 per hour with time-and-a-half for all hours over 40 in a week. Thus, her weekly salary
BigorU [14]

Answer:

a) 395.725

b) 378.75

c) 8.8

Step-by-step explanation:

a) S(8.5) = 11.25(8.5) + 300 = 395.625

b) if she worked 47 hrs, that means there were 7 overtime, h=7 and we have to find S(7).

S(7) = 11.25(7) + 300 = 378.75

c) her salary was 398.61, that means S(h) = 398.61 and we have to find h.

398.61 = 11.25(h) + 300

98.61 = 11.25(h)

h = 98.61 / 11.25

h= 8.8

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3 years ago
I was in special ed I I don't understand this
Debora [2.8K]
= 8 / (2) + 7
= 4 + 7
= 11
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3 years ago
Slope-intercept form for -10x+5y=5
max2010maxim [7]
Y=2x+1 is the answer
5 0
3 years ago
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