Question

the sum of three rational numbers is -1.if two of the numbers are 3/10 and -2/5. find the third number
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Answer 1

Step-by-step explanation:

Let the third rational number be x

then, numbers are 3/10,-2/5 and x

A/q

3/10+(-2/5)+x= -1

3/10-2/5+1=x

3-6+10/10=x

7/10=x

Third no. is 7/10

Answer 2

Answer:

$hii \: mate$

$see \: the \: attachment \: here$

$your \: answer \: is \: \frac{ - 9}{10}$

$hope \: it \: helps \: you$

$mark \: as \: brainliest \: answer$