A) 
A multiplicação de um numero positivo por um numero negativo resulta em um numero negativo: 
Multiplique os valores
resposta para A:
B)
A multiplicação dois números negativos resulta em um numero positivo : 
Multiplique os valores
Resposta para B :
C)
A divisão de um numero negativo por um positivo resulta em um numero negativo: 
Divida os números
Resposta para C:
D) 
Divida os números
Resposta para D:
POR FAVOR ME MARCA BRAINLIEST
Answer:
The experimental probability is 4%
Step-by-step explanation:
So, you have 3/4x + 5/8 = 4x. We can do this in two ways. Since fractions are harder to deal with, we can turn the fractions into whole numbers.
First we need to find the LCD (Least Common Denominator) between 4 and 8, which is 8. So multiply the 3/4x by 2/2, which gives you an equivalent fraction of 6/8x.
So now we have 6/8x + 5/8 = 4x. Now multiply both sides by 8, to get rid of the denominators of the fractions. That gives us 6x + 5 = 32x. Now use the subtraction property of equality to subtract 6x from both sides giving us 5 = 26x.
Now you can use the division property of equality to divide 26 on both sides, which gives us x = 5/26.
Hope this helps. :D Feel free to ask any other questions, and if you have any questions about my explanation, don't hesitate to ask.
