- Step-by-step explanation:
12g +21 and3(4g +7)
12g + 21 and( 3×4g=12g+3×7=21)
12g+21 and 12g+21,,
Answer:
La edad del abuelo es 75 años y la tuya es de 15 años.
Step-by-step explanation:
Si dentro de 5 años tu abuelo (A) tendrá el cuádruple de tu edad (E), tenemos:
(1)
Ahora, si hace cinco años tenia siete veces tu edad:
(2)
Multiplicando la ecuacion (1) por -1, tenemos:
(3)
Ahora sumando la ecuación (3) con (2):
![-10 = 3E - 55](https://tex.z-dn.net/?f=%20-10%20%3D%203E%20-%2055%20)
![E = 15](https://tex.z-dn.net/?f=%20E%20%3D%2015%20)
Entonces, reemplazando el valor de E en la ecuación (1):
![A + 5 = 4(15 + 5)](https://tex.z-dn.net/?f=%20A%20%2B%205%20%3D%204%2815%20%2B%205%29%20)
![A = 75](https://tex.z-dn.net/?f=%20A%20%3D%2075%20)
Por lo tanto, la edad del abuelo es 75 años y la tuya es de 15 años.
Espero que te sea de utilidad!
Answer: 1.Use of traditional tests may not evaluate how hard a student is willing to work to get a good evaluation
Step-by-step explanation:
Proponents of Traditional Tests argue that they are fairer because hard working students who may fail standadized tests may be able to pass them.
However, the text shows that that arguement has loopholes because a student could pass those Traditional testing methods by employing methods that are void of hard-work such as receiving help from other people or buying a customized essay over the internet.
Should this be the case then, Traditional tests may not be able to properly evaluate a student's hard work because one can not know if the submitted content was solely due to hard-work or if there was assistance from somewhere.
Answer: India washed more cars.
Step-by-step explanation: The best way to solve this problem is to convert both of the numbers into decimals.
Percy washed 8/25 of the cars. In order to convert this to a decimal you need to divide 8 by 25, which equals .32.
India washed 35%, which is .35.
India’s decimal number is higher, meaning that she washed the most cars.
Answer:
the answer is C: 2,500.80
Step-by-step explanation: