Which numbers are 3 units from -6 to their correct position on the number line

- 9 and - 3

consider 3 units to the left and right of - 6

- 6 - 3 = - 9 ( 3 units to the left of - 6 )

- 6 + 3 = - 3 ( 3 units to the right of - 6 )

ED=7.5

Step-by-step explanation:

ΔABC is similar to ΔDEB (they share ∠B, and ∠C=∠D and ∠A=∠E because corresponding angles), so their sides are in ratio:

ED/AC=BD/BC

We can see that BC is twice BD (marked), so we know BD/BC=0.5

ED/AC=BD/BC

ED/15=0.5

ED=7.5