A scalene triangle contains three unequal in length sides. Therefore, a right scalene triangle can be constructed without the use of a ruler or compass. The 90-degree angle can be signified by a small box in the corner of the triangle that measures 90 degrees.
        
             
        
        
        
Using the probability concept, it is found that since the number of red sweets would be a decimal number, the probability cannot be 
<h3>What is probability?</h3>
Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
In this problem:
- In total, there are 8 + n sweets in the bag.
The probability of red is:

Supposing, we solve for n:

10n = 7n + 56
3n = 56 
n  =  56 / 3
n  =  18.67
Since the number of red sweets would be a decimal number, the probability cannot be 7 / 10
To know more about probability follow
brainly.com/question/24756209
#SPJ1
 
        
             
        
        
        
ANSWER
The solution is 

EXPLANATION
The given equations are:

and

We multiply equation 1 by 3 to get,

We multiply equation 2 also by 2 to get,

We subtract equation 4 from equation 3 to get,

This implies that,

We put this value of y into any of the equations say equation 2

Simplify

Group like terms 

Simplify,

Divide both sides by 3 to get,

Therefore the solution is 

The correct answer is option D.
 
        
        
        
Answer:
a = 4
Step-by-step explanation: