Answer:
D.) $3.99
Step-by-step explanation:
Give the sweater any initial price to show whether they are equal
sweater initially = $10
decrease by 30% = $7
increase $7 by 30% = $9.10
No, they are not equal.
Answer:
DE = 18
Step-by-step explanation:
Given that,
Point D is on line segment CE.
DE = x+10, CD=6 and CE=3x
We need to find the length of DE.
ATQ,
CE = CD + DE
Putting all the values,
3x = 6 + x+10
Taking like terms together
3x-x = 16
2x = 16
x = 8
DE = x+10
= 8+10
= 18
Hence, the length of DE is 18.