Answer:12/7
Step-by-step explanation:
-9 2/7 -(-10 3/7)
(7x-9+2)/7+10 3/7
(7x-9+2)/7+(7x10+3)/7
-61/7+73/7
(-61+73)/7=12/7
Move the 4x over to the left side and get:
6x - 3 = 9
Then move the 3 over to the right....
6x = 12
Divide by 6
x = 2
Finding the difference between the two temperatures, it is found that Regina is 38.7ºC degrees colder in January than in July.
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- The mid-afternoon temperature in January is of -12.6ºC.
- In July, it is of 26.1ºC.
- The difference of the temperatures is given by:
From the difference of 38.7ºC, there are two interpretations:
- Regina is 38.7ºC degrees colder in January than in July.
- Regina is 38.7ºC degrees warmer in July than in January.
A similar problem is given at brainly.com/question/22136310
Queremos resolver un problema sobre porcentajes, donde conociendo el porcentaje que un dado número representa, queremos encontrar el número equivalente al 100%.
Veremos que el número total de arboles es 250.
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Sabemos que el 18% de los arboles son almendros y el resto son naranjos, es decir, el porcentaje de naranjos es 100% - 18% = 82%
Y sabemos que hay 45 almendros.
Entonces el <u>18% del número total de arboles es 45.</u>
Es decir, si hay N arboles en total, el 18% de N es igual a 45, esto se puede escribir como:
(18%/100%)*N = 45
0.18*N = 45
N = 45/0.18 = 250
Así podemos concluir que hay un total de 250 arboles en la plaza.
Si quieres aprender más, puedes leer:
brainly.com/question/24907616
Answer:
4x + 107 = 180
Step-by-step explanation:
105 + 4x + 2 = 180
