2 years ago

Hugo paid $4.50 for 6 books, if he paid 2.25 how many books did he get?

Mathematics

1 answer:

Vlad1618 [11]2 years ago

5 0

Answer:

2 or 3 books

Step-by-step explanation:

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Factor 21a–27.

Ganezh [65]

Answer:

3(7a - 9)

Step-by-step explanation:

21a–27

3*7*a - 3*9

Factor out 3

3(7a - 9)

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2 years ago

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Which terms are like terms in the expression 5x + 9 + (-7x)

Veronika [31]

Answer:

5x and -7x

Step-by-step explanation:

they both end in the variable "x"

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3 years ago

Find Distance (4,6) (-4,-3)

vampirchik [111]

Answer:

$\sqrt{145}$

Step-by-step explanation:

The distance formula states that the distance between two points $(a,b)$ and $(c,d)$ is $\sqrt{(a-c)^2+(b-d)^2}$ .

The two points we have are $(4,6)$ and $(-4,-3)$ . Plugging these numbers into the distance formula, we have

$\sqrt{(4-(-4))^2+(6-(-3))^2$ .

Simplifying with order of operations, first using the distributive property, gives

$\sqrt{(4+4)^2+(6+3)^2$ .

Squaring and adding gives

$\sqrt{(4+4)^2+(6+3)^2}=\sqrt{8^2+9^2}\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~=\sqrt{64+81}\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~=\boxed{\sqrt{145}},$

which is the answer in simplest form. This also rounds to about 12.04.

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2 years ago

A building that is 100 ft tall casts a shadow that makes a 30 degree angle with the ground. Approximately how long, in feet, is

Naddik [55]

The awnser is 130 ft.

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3 years ago

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while digging in the background, you find an old coin. its mass is 26.76 g qnd its volume is 3cm3. what is the coin made of?

tresset_1 [31]

Answer:

the coin is made of copper.

Step-by-step explanation:

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3 years ago