Answer:
53.2 kg
Step-by-step explanation:
Let E represent Esther's weight. Then Henry's weight is E/2, and David's weight is E-5.2. Their average weight is ...
((E-5.2) + E + (E/2))/3 = 42.6
2.5E -5.2 = 127.8 . . . . . . . . . . multiply by 3, simplify
2.5E = 133 . . . . . . . . . . . . . . . . add 5.2
E = 133/2.5 = 53.2 . . . . kg
Esther's weight is 53.2 kg.
The first choice, .
The numerator, , is equivalent to eighteen "" multiplied together:
.
On the other hand, the denominator, , is equivalent to three "" multiplied with one another:
Dividing by would eliminate three "" from the numerator:
In general, dividing an expression by () is equivalent to multiplying that expression by .
For example, in this question, dividing by would be equivalent to multiplying by . In other words:
Answer: k = 55 degrees
to find J, subtract 122 from 180, you get 58. The total number of degrees is 180. Since L is given as 67, and 67+58=125. Simply subtract 125 from 180 which is 55 degrees
B ($9.78)