Answer:
48 dias
Step-by-step explanation:
1000 gramas = 1 kg
A quantidade inicial de areia = 40kg
1 kg = 1000g
40kg = x
Multiplicação cruzada
1 kg × x = 40 kg × 1000g
x = 40 kg × 1000g / 1 kg.
x = 40,000 gramas
Somos informados de que 2/5 se esgotou.
Quantidade que foi drenada =
40,000 × 2/5
= 16,000 gramas foram drenados
Quantidade restante = 40,000 gramas - 16,000 gramas
= 24,000 gramas
A areia escoa a 500g por dia, portanto,
500g = 1 dia
24,000g = x
Multiplicação cruzada
500g × x = 24, 000 × 1
x = 24,000 g × 1 dia / 500
x = 48 dias
Restariam 48 dias para que a areia restante vazasse.
Answer:
339.36 cm^2
Step-by-step explanation:
14*12.12=169.68
169.68/2=84.84
84.84= the area of one triangle
(84.84)4=339.36
I'm pretty sure, but check my math if it's wrong
Answer:
Step-by-step explanation:
mark me Brainllest
Answer:
()
Step-by-step explanation:
When factoring an expression like this, you need to divide all of the parts by a common number or variable. In this case, the only thing all of these numbers share is that they are divisible by 648. So, you would divide each number by 648 to simplify it, getting 1, 3, 4, and 2. Put these numbers in front of their respective variables, and put 648 outside of the parentheses to get the final answer.
Given that line <span>EJ is perpendicular to line CN and line CN is parallel to line KT.
Since E, J and V is collinear (are on the same straight line), thus EV is perpendicular to CN, and since CN is parallel to KT, thus EV is perpendicular to KT.
Since line C, J and N are collinear and CN is perpendicular to EJ, this means that line CN and line EJ meets at point J and since they are perpendicular, <CJV = 90 degrees.
Therefore, the correct answers are:
</span>
<span>EV←→⊥KT←→
and
m∠CJV=90°</span>