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3 years ago

A book normally costs 21.50. today it was on sale for 15.05. how much is the discount?

Mathematics

2 answers:

raketka [301]3 years ago

7 0

6.45

Step-by-step explanation:

21.50-1505=6.45

arsen [322]3 years ago

6 0

Answer:

$6.45

Step-by-step explanation:

$21.50-$15.05=$6.45

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Lorenas backpack has a mass of 10000 grams what is the mass of Lorenas backpack in kilograms

Travka [436]

Lorenas backpack is has the mass of 10000 grams so in kilograms the mass of Lorenas backpack in kilograms would simply be 10 kilograms

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3 years ago

The cost C (in dollars) of producing x DVD players is represented by C = 4.5x2. How many DVD players are produced if the cost is

lisabon 2012 [21]

Given the following equation representing the cost of producing DVD Players:

$\text{ C = 4.5x}^2$

Let's determine the number of DVD players produced if the cost is $544.50

$\text{ C = 4.5x}^2$ $\text{ \$544.50 = 4.5x}^2$ $\text{ }\frac{\text{\$544.50}}{\text{ 4.5}}\text{ = }\frac{\text{4.5x}^2}{\text{ 4.5}}$ $\text{ 121 = x}^2$ $\text{ }\sqrt{\text{121}}\text{ = }\sqrt{\text{x}^2}$ $\text{ 11 = x}$

Therefore, it'll cost $544.50 to produce 11 DVD Players.

The answer is 11.

3 0

1 year ago

Together, Lucia and Ben have saved $150. Lucia saved $2 for every $1 Ben saved. How much money did each person save?

4vir4ik [10]

Lucia saved 100 dollars and Ben saved 50 dollars

6 0

4 years ago

<img src="https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%7B3%7D%2B4%5Cright%29%5Cleft%281%2B%5Csqrt%7B3%7D%5Cright%29" id="TexFormula

kirza4 [7]

Answer:

$\huge\boxed{\sf 7 + 5\sqrt{3} }$

Step-by-step explanation:

$(\sqrt{3} +4)(1+\sqrt{3})\\\\= \sqrt{3}(1+\sqrt{3} )+4(1+\sqrt{3})\\\\= \sqrt{3} + (\sqrt{3} )^2 + 4 + 4\sqrt{3} \\\\= \sqrt{3} + 3+4+4\sqrt{3} \\\\= 7 + \sqrt{3} + 4\sqrt{3} \\\\Take \ \sqrt{3} \ common\\\\= 7 + \sqrt{3} (1+4)\\\\= 7 + \sqrt{3}(5)\\\\= 7 + 5\sqrt{3} \\\\\rule[225]{225}{2}$

Hope this helped!

4 0

2 years ago

Cathy drank 600 milliliter of water at school and another 400 milliliter at home.How many liters of water did Cathy drink?

motikmotik

600 + 400 milliliters = 1,000 milliliters.

However, the question is asking how many liters she drank. 1 liter = 1,000 milliliters, so that means Cathy drank 1 liter of water.

6 0

3 years ago