Ababy usually gains 10% of its birth weight plus 2 pounds in the first six weeks after birth. a baby gained 2.8 pounds. write an equation to find the baby’s birth weight, x.

The equation to find the baby's birth weight is 0.1x + 2 = 2.8 and the weight is 8 pounds.

Step-by-step explanation:

1. Let's check all the information provided to us to answer the question correctly:

Weight that a baby gains in the first 6 weeks after birth = 10% + 2 pounds

Weight that a baby gains in the first 6 weeks after birth = 2.8 pounds

2. Write an equation to find the baby’s birth weight, x.

Baby's birth weight = x

Baby'

0.1x + 2 = 2.8

0.1x = 2.8 - 2

0.1x = 0.8

x = 8

The equation to find the baby's birth weight is 0.1x + 2 = 2.8 and the weight is 8 pounds.

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.