A rectangle has a length of (10x-3) and a width of (2x+2). Find the perimeter

Mathematics

2 answers:

Vinil7 [7]2 years ago

8 0

Answer:

The perimeter is 24x - 2.

Step-by-step explanation:

The perimeter of a rectangle is found using the following formula: $2(l+w)$ . The length and width added together are 10x - 3 + 2x + 2 or 12x - 1, multiply that by 2 and you'll get that the perimeter is equivalent to 24x - 2.

aleksklad [387]2 years ago

3 0

Answer:

24x-2

Step-by-step explanation:

Perimeter is 2(L+w)

(10x-3)+(2x+2)

Combine like terms

12x-1

2(12x-1)

24x-2

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In a recent year, 31% of all college students were enrolled part-time. If 8.6 million college students were enrolled part-time t

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Answer:

28 million college students.

Step-by-step explanation:

We can represent all college students as x. This means that all part-time college students are $\frac{31}{100}x$ . Because all part-time college students are also equal to 8.6 million, we have $8,600,000=\frac{31}{100}x$ . To find the number of total college students, or x, we have to multiply by 100/31 to get rid of the fraction on the other side:

$8,600,00\cdot\frac{100}{31}=x$

The left side of the equation evaluates as $27,741,935.5$ . Because we are asked to round to the nearest million, we have to round to 28 million, which is the closest.