The sum of the number and three times its reciprocal is 79/10. Find the
number.

hi  

so    x + 3 (-x)  =  79/10

        x-3x = 79/10

         -2x = 79/10

             x =   79/10 / -2  

              X =   79/ 10 *   -1/2

              x =     - 79/20

              x =   - 3.95

the answer will be the last one

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

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