Answer:
Step-by-step explanation:
let their ages be x,y,z and x>y>z
x+y+z=74 ...(1)
x=(y+z)-12
or x-y-z=-12 ...(2)
y=z+5 ...(3)
add (1) and (2)
2x=62
x=62/2=31
from (1)
31+y+z=74
y+z=74-31=43
substitute from (3)
z+5+z=43
2z=43-5=38
z=38/2=19
y=19+5=24
so their ages are 31,24 and 19
Its the ones place value I hope that helped
Answer:
Comelia is correct.
Step-by-step explanation:
Rational numbers are those whole can be represented as a fraction.
=> Every fraction is a rational number.
Comelia Says:
All Whole Numbers are Rational Numbers
=> Example: 3 = rational number
=> 3 can be represented as a fraction
=> 30/10 = 300/100
So, Comelia's statement is correct.
Christopher Says:
All Rational Numbers are Whole Numbers
=> Example: 1/2 = Whole Number
=> 1/2 is a fraction
=> 1/2 = .5
=> .5 is not a whole number.
Whole numbers don't have numbers after the decimal point.
So, Christopher's statement is incorrect.
Answer:
The graph of the ellipse is shown in the attachment
vertices; ( -5,0) and (5,0)
co-vertices; (0, -2) and (0, 2)
foci; (
,0), (
,0)
Step-by-step explanation:
The vertices and co-vertices of the ellipse are on the graph. They represent the turning points of the ellipse.
To determine the foci of the ellipse we write the given equation in standard form by dividing both sides by 100 and then simplifying;
We then determine the distance c from the center to the focus;
The foci of the ellipse are thus; (,0), (,0)
