1/2 minus 2/5 pls help me

1/10

Step-by-step explanation:

need same denominator

1/2 x 5 = 5/10

2/5 x 2 = 4/10

5/10 - 4/10 = 1/10

1/10 (0.1)

Step-by-step explanation:

1 ÷ 2 is equal to 0.5

2 ÷ 5 is equal to 0.4

Subtract 0.5 from 0.4 to get 0.1 or 1/10

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)