3 years ago

2 lengths of a rectangle are shown. (N-5) (n+5) what is the area of the rectangle?

Mathematics

2 answers:

Lilit [14]3 years ago

7 0

Answer:

n^2 - 25

Step-by-step explanation:

These dimensions are the difference and the sum of two quantities.

Recall that (a - b)(a + b) = a^2 - b^2 (no middle term).

The area of this rectangle is A = (n - 5)(n + 5) = n^2 - 25

In-s [12.5K]3 years ago

6 0

Is there a picture you can show me?

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Answer:

The cost of each cotton candy bag is $4.

Step-by-step explanation:

Consider the provided information.

Let, the vendor has $x$ dollar at the starting of each day.

Let, the cost of each cotton candy bag is $y$ .

Now when she sells a total of 12 bags, she has $128.

$x+12y=128$ .....(1)

After she sells a total of 20 bags, she has $160.

$x+20y=160$ ....(2)

Subtract equation 1 from equation 2.

$(x+20y)-(x+12y)=160-128$

$8y=32$

$y=4$

Hence, the cost of each cotton candy bag is $4.

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