A dress cost twice as much as a skirt. Mom bought 3 dresses and 2 skirts. She gave the cashier $1000 and received $300 in change
1 answer:
Answer:
$175 = Cost of single dress
Step-by-step explanation:
It is provided that cost of dress is twice that of a skirt.
Let say, cost of skirt = x
Total things bought 3 dresses and 2 skirts.
Cost of single dress = 2x
Cost of all items = 3 2x + 2
x = $1,000 - $300 = $700
6x + 2x = $700
x = 700/8 = $87.50
Cost of single dress = 2x = $87.50 2 = $175
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Answer:
|CE|=2
Step-by-step explanation:
The quadrilateral is shown in the attachment
Recall that the diagonals of a rectangle are congruent.
This implies that:
|AC|=|BD|
We substitute the expressions to get:
This is now a linear equation in one variable.
Group similar terms to get:
Simplify to get:
15=3x
Divide both sides by 3 to get:
Recall again that the diagonals of a quadrilateral bisect each other.
Plug x=5
