Answer:
Alice's weight is 100 lbs.
Step-by-step explanation:
Let's denote Jane's weight by J, and Alice's weight by A.
The exercise says that Jane is 20 lbs heavier than Alice. So that if you add 20 lbs to Alice's weight, you get Jane's weight. In equation form:

It also mentions that Jane's weight is 120% that of Alice. So that if you multiply Alice's weight by 1.2, you get Jane's weight. In equation form:

Plugging this second equation onto the first equation, we get:

And now solving for A:




Therefore Alice's weight is 100 lbs.
20 - 12 = x
combine like terms, theres ur answer
Answer:
bra no
Step-by-step explanation:
bra
Answer:
x= -8
Step-by-step explanation:
you combined the two equations to equal 180 since CIA are supplementary and the you solve the equation.
Answer:
3/5
Step-by-step explanation:
Cos C = adjacent/hypotenuse
or, Cos C = 21/35 = 3/4
Answered by GAUTHMATH