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2 years ago

A rectangle has a length of x + 7 and a width of 2x -3 if its perimeter perimeter is 32 what is the value of 3x

1 answer:

5 0

$Answer: \\ We \: have \: an \: equation:2(x + 7 + 2x - 3) = 32 \\ \Leftrightarrow 2(3x + 4) = 32 \\ \Leftrightarrow 3x + 4 = 16 \\ \Leftrightarrow 3x = 12$

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2 years ago

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astra-53 [7]

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2 years ago

In order to create the inverse of conditional statement "If p

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3 years ago

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Christina wants to compute the cost of tiling the floor in her bathroom. The floor measures 7 feet 6 inches by 8 feet 10 inches.

ArbitrLikvidat [17]

Answer:

Two boxes will cost $\$35.95\cdot 2=\$71.9.$ The cost of one tile is approximately $\dfrac{\$71.9}{67}\approx \$1.08.$

Step-by-step explanation:

Note that 1 ft = 12 in, then

$7\ ft\ 6\ in=7\cdot 12+6\ in =90\ in,\\ \\8\ ft\ 10\ in=8\cdot 12+10\ in=106\ in.$

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$\dfrac{144}{9540}=\dfrac{1}{x},\\ \\x=\dfrac{9540}{144}=66.25$

tiles is needed to cover the floor (67 full tiles).

Each box of tiles contains 45 tiles, so Cristina has to buy 2 boxes. These two boxes will cost $\$35.95\cdot 2=\$71.9.$ The cost of one tile is approximately $\dfrac{\$71.9}{67}\approx \$1.08.$

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3 years ago

I really need help someone answer pls

MArishka [77]

Answer:

(4)The lowest common denominator of 3 and 8 is 24.

(5) The lowest common denominator of 5 and 10 is 10.

(6) The lowest common denominator of 7 and 3 is 21.

(7) The lowest common denominator of 4 and 5 is 20.

(8) The lowest common denominator of 2 and 12 is 12.

(9) The lowest common denominator of 15 and 5 is 15.

Hope this helped! :)

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2 years ago