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stiv31 [10]
2 years ago
12

What is the value of the expression 30 − 9 + 3 − (12 ÷ 4)? 18 20 21 24

Mathematics
1 answer:
Bond [772]2 years ago
6 0
The answer will be 21
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8x + 11 + 3x + 11 + 39 = 180
kow [346]

Answer:


Step-by-step explanation:

collect terms

11x+61=180

move numbers to one side and x to other

11x=180-61

11x=119

x=119/11=10.8

7 0
3 years ago
Read 2 more answers
Un estudiante debe recorrer dos tercios de kilómetro para llegar al colegio, si avanza medio kilómetro en bus y lo demás a pie ¿
Murljashka [212]

Answer:

Al estudiante le falta caminar \frac{1}{3} de kilómetro.

Step-by-step explanation:

Un estudiante debe recorrer dos tercios de kilómetro para llegar al colegio. Dos tercios equivale a la fracción \frac{2}{3} .

El estudiante avanza medio kilómetro en bus. Un medio equivale a la fracción \frac{1}{2}, por lo tanto un medio es la mitad de una cantidad.  Para calcular la distancia recorrida en bus se realiza la siguiente multiplicación:

\frac{1}{2} *\frac{2}{3}

Resolviendo:

\frac{1}{2} *\frac{2}{3} =\frac{1*2}{2*3} =\frac{2}{6} =\frac{1}{3}

Entonces, la distancia recorrida en bus es \frac{1}{3} de kilómetro.

Para calcular la distancia recorrida a pie se calcula la diferencia entre la distancia total a recorrer por el estudiante y la distancia recorrida en bus. Esto es:

\frac{2}{3} - \frac{1}{3}

Resolviendo:

\frac{2}{3} - \frac{1}{3}=\frac{2-1}{3} =\frac{1}{3}

<u><em>Al estudiante le falta caminar </em></u>\frac{1}{3}<u><em> de kilómetro.</em></u>

6 0
3 years ago
1/x=6/x+15 , 20-x/x=6/4, and 4/12=x+2/2x+13
natka813 [3]
<span>1/x=6/x+15 x= -1/3
</span><span>20-x/x=6/4 = False, no solution exists
</span>4/12=x+2/2x+13 = x = -19/3
5 0
3 years ago
What is the remainder of 640 divided by 79
musickatia [10]
The remainder of 640 divided by 79 is 71.1111111111111111111111111111111
5 0
3 years ago
Which is greater 6.030 or 6.03
Art [367]
Neither! They are both the same. 6.030 is just 6.03 with an extra zero at the end. The zero does not change the value.
6 0
3 years ago
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