Answer:
m = 28
Step-by-step explanation:
Simplifying
0.1(0.5m + 6) = 2
Reorder the terms:
0.1(6 + 0.5m) = 2
(6 * 0.1 + 0.5m * 0.1) = 2
(0.6 + 0.05m) = 2
Solving
0.6 + 0.05m = 2
Solving for variable 'm'.
Move all terms containing m to the left, all other terms to the right.
Add '-0.6' to each side of the equation.
0.6 + -0.6 + 0.05m = 2 + -0.6
Combine like terms: 0.6 + -0.6 = 0.0
0.0 + 0.05m = 2 + -0.6
0.05m = 2 + -0.6
Combine like terms: 2 + -0.6 = 1.4
0.05m = 1.4
Divide each side by '0.05'.
m = 28
Simplifying
m = 28
A
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Answer:
3 obreros tardaran 225 minutos en completar el trabajo.
Step-by-step explanation:
Sea R la velocidad con la que un obrero puede construir 1 muro.
Sabemos que 15 obreros construyen un muro en 45 minutos, entonces:
(15*R)*45min = 1 muro
Con esta ecuación podemos encontrar el valor R
R = (1 muro)/(15*45min)
Ahora queremos saber cuando tiempo tardan 3 obreros en construir un muro, entonces tenemos que resolver:
(3*R)*T = 1 muro
Reemplazando el valor de R obtenemos:
(3*(1 muro)/(15*45min))*T = 1 muro
T = (1 muro)*(15*45 min)/(3*1 muro)
T = 5*45min = 225 min
3 obreros tardaran 225 minutos en completar el trabajo.
Answer:
For the first page (doesn't show the number), it is the third option.
For the second page (doesn't show the number), it is also the third option.
For the third page or number 15, it is the second option
For the fourth page or number 12, it is the second option
For the fifth page or number 11, it is the second option
Step-by-step explanation:
If this has helped you, please mark as brainliest
Remember that scientific notation always contains a number between 0 and 10 that is multiplied by ten to some power. In this case, to get a number between 0 and 10 (7.2) we would move the decimal point once to the right. Since it is moving to ththe right, the exponent over the 10 will be negative, and it will be -1 because we moved the point once. So the answer is 7.2*10^-1
Hope this helps
