Answer:
Question A)
Question B)
Question C)
Step-by-step explanation:
A)
We are given:
We can rewrite the expression:
The square root and square will cancel each other out. Thus:
B)
We are given:
Rewrite:
Note that the square root of 9 is simply 3. We can also factor the second part:
Rewriting:
Simplify:
C)
We are given:
Rewrite. Note that 50 = 25(2):
Simplify. We can rewrite the factor as:
The square and square root will cancel out. Thus:
Answer:
b)
Step-by-step explanation:
Para ampliar la habitación cuadrada, se agregaron 4 metros de largo y 2 metros de ancho, como se muestra en la figura.
Deje que la longitud y el ancho de la habitación antes de la expansión sean x.
La nueva longitud de la sala es (x + 4).
El nuevo ancho de la sala es (x + 2).
La nueva área de la sala será:
Esa es la nueva área de la habitación.
Marisa, who raise the price of her earrings so that she will make a profit of $5.00 on each pair, expect to make a profit with her company.
<h3>What is the unit price?</h3>The unit price is the amount of money required to buy one unit of a item or goods.
To find the unit price, divide the total cost of the goods to the total number of goods.
The cost of repair will now be $60. Thus, the total cost of 50 earrings is,
Marisa decided to raise the price of her earrings so that she will make a profit of $5.00 on each pair. Thus, the new selling price of her earring is,
The sale's price of 50 earrings is,
She has also improved the quality control so that only 1 pair in 50 need to be returned for repair. Thus, the cost price of one earring has to be removed from the sales price of 50 earrings as,
The profit made by her company on 50 earrings is
Thus, Marisa, who raise the price of her earrings so that she will make a profit of $5.00 on each pair, expect to make a profit with her company.
Learn more about the unit price here;
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