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mel-nik [20]
3 years ago
6

Dave bought 18 packets of cookies for $19.80. Each packet of cookies contains 10 cookies. Find the cost of each cookie to the ne

arest tenth of a cent.
Mathematics
1 answer:
lina2011 [118]3 years ago
4 0

There are 18 packets.

Each packet has 10 cookies.

Let T = total number of cookies.

T = 10(18)

T = 180

There are 180 cookies.

Let C = cost of each cookie.

Use the equation C = 19.80/T.

You know what T is, right? Look above to see the value of T. Plug that T-value into the equation and solve for C.

After that, round your answer as instructed.

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Circle V is shown. Line segment T V is a radius with length 14 feet.
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We have been given graph of circle V with radius 14 feet. We are asked to find the area of the circle V.

We will use area of circle formula to solve our given problem.

A=\pi r^2, where r represents radius of circle.

Upon substituting r=\text{14 ft} in above formula, we will get:

A=\pi(14\text{ ft})^2

A=\pi(14)^2\text{ ft}^2

A=\pi\cdot 196\text{ ft}^2

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Therefore, the area of the circle V is 196\pi square feet and option 'c' is the correct choice.

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3 years ago
What is true about the completely simplified sum of the polynomials 3x2y2 − 2xy5 and −3x2y2 + 3x4y?
Elanso [62]

Answer:

The sum is a binomial with a degree of 6

Step-by-step explanation:

we have

(3x^{2}y^{2}-2xy^{5})+(-3x^{2}y^{2}+3x^{4}y)

Group terms that contain the same variable

(3x^{2}y^{2}-3x^{2}y^{2})-2xy^{5}+3x^{4}y

0-2xy^{5}+3x^{4}y

-2xy^{5}+3x^{4}y

The sum is a binomial ( two terms) with a degree of 6  

-2xy^{5} has a degree of 6 (x has an exponent of 1, y has 5, and 1+5=6)

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