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Oksana_A [137]
3 years ago
13

A rectangle Is (2x-3) cm long and (x+7) cm wide. What Is It's area?​

Mathematics
2 answers:
krok68 [10]3 years ago
6 0

Answer:

2x^{2} + 11x -21 cm^{2}

Step-by-step explanation:

Area of a rectangle = Length × Width

= (2x-3)(x+7)

Multiply 2x with x, 2x with +7, -3 with x and -3 with +7

= 2x^{2} + 14x - 3x - 21

= 2x^{2} + 11x -21 cm^{2}

Nikitich [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Length (L)= 2x - 3 cm

Breadth (b) = x + 7 cm

Area of the rectangle

= L * b

= ( 2x - 3)(x+ 7)

= 2x(x + 7) - 3(x + 7)

= 2x² + 14x  - 3x - 21

=( 2x² + 11x - 21) cm²

hope it helps

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Step-by-step explanation:

The first thing we need to focus on is the fact the large bag (30 cups) is 2.5 larger than the small bag. So, the first we need to do is divided 30 by 2.5, which is 12. (300/25 = 30/2.5 = 12, in case you're confused.) So the small bag has 12 cups of sugar.

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<em>I hope this helps!  (⌒ω⌒)</em>

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