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2 years ago

10

The sales in one town is 8%. So, the total cost of an item can be written as c+0.08c. What is the total cost of an item that sel

ls for 12 dollars?

1 answer:

Verizon [17]2 years ago

7 0

12 x 8% = .96 (tax)

So 12 + .96 = $12.96 total

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I need help on a and b

const2013 [10]

Uploaded some diagrams

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3 years ago

Choose 3 values that would make thi inequalitie true 28+x>42

Y_Kistochka [10]

9514 1404 393

Answer:

14.01, 493, 87

Step-by-step explanation:

Subtracting 28 from both sides tells you the range of values you need to be looking at.

28 + x > 42

x > 14

Any values more than 14 will make the inequality true. Three of them are ...

14.01, 493, 87

4 0

2 years ago

The figure consists of a quarter circle and a parallelogram. What is the area of the composite figure? Use 3.14 for pi. Round to

Andru [333]

The area of a full circle is given by
A = π*r^2
so the area of a 1/4 circle will be 1/4 of that:
A = (π/4)*r^2

The area of a parallelogram is the product of base length and height:
A = bh

Your composite figure will have an area that is the sum of the areas of the parts.
A = (quarter circle area) + (parallelogram area)
A ≈ (3.14/4)*(14 in)^2 +(14 in)*(5 in)
A ≈ 223.86 in^2 ≈ 224 in^2

The most appropriate selection is the last one,
224 in^2

7 0

3 years ago

Read 2 more answers

Simplify: 4 x 3^2 - 3 + 5 x 2 =

adell [148]

Answer:

43

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

You have 100 feet of fencing and decide to make a rectangular garden. What is the largest area enclosed

k0ka [10]

Answer:

625 ft^2

Step-by-step explanation:

Given

$P = 100$ --- perimeter

Required

The largest area

The perimeter is calculated as:

$P = 2 * ( L + W)$

So, we have:

$2 * ( L + W) = 100$

Divide both sides by 2

$L + W = 50$

Make L the subject

$L = 50 - W$

The area is calculated as:

$A= L * W$

Substitute $L = 50 - W$

$A= (50 - W) * W$

Open bracket

$A = 50W - W^2$

Differentiate with respect to W

$A' = 50 -2W$

Set to 0; to get the maximum value of W

$50 - 2W = 0$

Collect like terms

$-2W = -50$

Divide by -2

$W = 25$

So, the maximum area is:

$A = 50W - W^2$

$A = 50 * 25 - 25^2$

$A = 1250 - 625$

$A = 625$

3 0

2 years ago