Step-by-step explanation:
![\dfrac{a}{b}\cdot(-1)=-\dfrac{a}{b}](https://tex.z-dn.net/?f=%5Cdfrac%7Ba%7D%7Bb%7D%5Ccdot%28-1%29%3D-%5Cdfrac%7Ba%7D%7Bb%7D)
On the number line, fractions a/b and -a/b lie on the opposite sides of the number 0, at the same distance (look at the picture).
Answer:
Elimination
Step-by-step explanation:
A system of equations is 2 or more equations for which the same x,y solution exists. We can solve the system in three ways: elimination, substitution, or graphing. Elimination is the best method when we have standard form equations and x values with opposite coefficients. This is so because the x variable will eliminate easily and allow us to solve for y.
Answer:
No
Step-by-step explanation:
pretend that the larger number in the ratio is always 60
10:8 so 10=60
60÷10 =6
6x8=48
so in 10:8 10=60 and 8=48
60-48= 12
in 5:2
5=30
2=12
30-12=18
10:8 and 5:2 when substituted to a real number will not have the same difference so they are not a proportion