Answer:
I think A is the right answer
Answer:
200 berlindes
Step-by-step explanation:
Vamos representar
O número total de berlindes na caixa = X
Mármores vermelhos = 20% de X
= 0.2X
Mármores amarelos = 40% de X
= 0.4X
Mármores azuis = 80
Conseqüentemente,
0.2X + 0.4X + 80 = X
Recolher termos semelhantes
80 = X - 0.2X - 0.4X
80 = X - 0.6X
80 = 0.4X
Divida ambos os lados por 0.4
X = 80 / 0.4
X = 200
Uma vez que X representa o número total de berlindes na caixa, portanto, o número total de berlindes na caixa = 200 berlindes
Answer:
Step-by-step explanation:
One loan from the local bank is a three year loan with a capital of $75000 and an annual interest of 5%.
Therefore simple interest form this loan for the year will be
⇒ Principal amount×Rate of interest×Time(in years)/100
⇒ 75000×5×1/100
Interest = $3750
Other loan is a one year loan with a principal of $21000 and annual interest of 4.5%
Therefore interest of first year from this loan will be
= Principal amount×Rate of interest×Time(in years)/100
= 21000×5×4.5/100
= $4725
Total interest of first year for both loans = 3750+4725 = $8475
Answer:
X=12
Step-by-step explanation:
simplify both sides of the equation then isolate the variable.
5/2(12)-7=23
3/4(12)+14=23
making both equations equal to each other.
Answer:
the equation | 5x + 10| = -7 has no solution for x ∈ R.
Step-by-step explanation:
Given the absolute value equation
| 5x + 10| = -7
- We know that absolute value is always positive.
Reason:
The reason is that the absolute value is the distance from the number 0. Hence, it can not be less than or equal to a negative number.
Conclusion:
Therefore, we conclude that the absolute value of any number would be either 0 or positive as it can not less than or equal to a negative number.
Therefore, the equation | 5x + 10| = -7 has NO SOLUTION for x ∈ R.
