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4 years ago

Sally had 210 dollars to spend on 6 books.After buying them she had 12 dollars how much did each book cost

1 answer:

7 0

Hi there!

To solve this, we need to subtract the remainder of 12 from the total amount spent and divide that by 6.

210 - 12 = 198

198 / 6 = 33

So, each book cost 33 dollars.

Hope this helps!

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Kitty [74]

The answer would be letter A.

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Troyanec [42]

The difference of the given fraction is expressed as $\frac{x^2+4x-1}{x(x+2)}$

Given the expression:

$\frac{x+5}{x+2}-\frac{x+1}{x^2+2x} \\$

Take the LCM of the fraction to have:

$=\frac{x+5}{x+2}-\frac{x+1}{x(x+2)} \\=\frac{x(x+5)-(x+1)}{x(x+2)} \\=\frac{x^2+5x-x-1}{x(x+2)}\\=\frac{x^2+4x-1}{x(x+2)}$

Hence the difference of the given fraction is expressed as $\frac{x^2+4x-1}{x(x+2)}$

Learn more on fractions here; brainly.com/question/78672

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2 years ago

Read 2 more answers

Find all the missing sides and angles of this triangle,

iren2701 [21]

Answer:

See solutions below

Step-by-step explanation:

From the given diagram;

AC = opposite

AB = 7 = hypotenuse

Angle of elevation = 70 degrees

Using SOH CAH TOA

Sin theta = opp/hyp

Sin theta = AC/AB

Sin 70 = AC/7

AC = 7sin70

AC = 7(0.9397)

AC = 6.58

Similarly

tan 70 = AC/BC

tan 70 = 6.58/BC

BC = 6.58/tan70

BC = 6.58/2.7475

BC = 2.39

tan m<A = BC/AC

tanm<A = 2.39/6.58

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3 years ago

The perimeter of a square is 36<br>what is the area of the square?

zmey [24]

Answer: 81 units²

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Therefore, since the perimeter of the given square is 36, we have 36 = 4s and dividing both sides by 4, 9 = s.

Now, remember that the formula for the area of a square is s² and since the length of a side of the given square is 9, we have (9)² or 81.

So the area of a square that has a perimeter of 36 is 81 units².

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3 years ago

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Elodia [21]

Answer:

Step-by-step explanation:

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then the line crosses the y- axis at (0, 9 )

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2 years ago