Let's call the girls "x" and the boys "y".
first equation is this one:
There are 23 students in a karate class.
this we would write:
x+y=23
and the second equation can be found from this sentence:
The number of girls is less than twice the number of boys
which means:
x<2y.
Now, that's an inequality, but it's all we can do here, since the question doesn't tell us anything more - also, we can's solve it exactly.
we could say, for example that it's less by 1, then it would be:
x-1=2y.
but the question doesn't say by how much less!
Answer:
is it 20% I'm not really sure
Answer:
True
Step-by-step explanation:
Let A denotes the point (1,7)
Let B denotes the point (5,5)
We are supposed to find The length of the line segment containing the points
Formula : 
So,The length of the line segment containing the points (1,7) and (5,5) is 4.47 units is true.
Hence Option A is true
