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4 years ago

What is total cost of three pairs of socks priced at 1.29 a pair, with a 6% sales tax?

Mathematics

1 answer:

Rzqust [24]4 years ago

3 0

Answer:

$4.10

Step-by-step explanation:

Subtotal = (3 pairs of socks) x (price of socks):

Subtotal = (3 x $1.29) = $3.87

To get the overall total, you add tax, which is 6% of the subtotal:

6% of the subtotal = 0.06 x subtotal = 0.06 x $3.87 = $0.23

Subtotal + tax = $3.87 + $0.23 = $4.10

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Some investments in the stock market have earned 10% annually. At this rate , earnings can be found using the formua A=P(1.10)^n

Lerok [7]

<span>The earnings by a stock invested at r% for n years is obtained by the formular A = P(1 + r)^n; where P is the initial investment = 1,500; r is the interest rate = 10% and n is the numberof years of the investment. Here A = 1,500(1 + 0.1)^18 = 1,500(1.1)^18 = 8,339.88.Hope this helps. Let me know if you need additional help!</span>

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4 years ago

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Min-Jee is planting two rectangular flower beds. One bed is 2.78 feet by 4.81 feet, and the other bed is 2.78 feet by 5.61 feet.

shusha [124]

Answer: $(2.78+4.81)(2.78+5.61)$

Step-by-step explanation:

<h3> The complete exercise is attached.</h3><h3></h3>

The area of a rectangle can be calculated with this formula:

$A=lw$

Where "l" is the lenght and "w" is the width.

Then, you can notice that it can be obtained by multiplying the dimensions of the rectangle.

Knowing this, you can determine that the total area of the two flowers bed can be obtained by adding the products of their dimensions.

Since one of the rectangular flower bed is 2.78 feet by 4.81 feet and the other bed 2.78 feet by 5.61 feet, you can write the following expression to find the total area (in square feet)of the two beds:

$2.78*4.81 +2.78*5.61$

If you factor out 2.78:

$2.78(4.81 +5.61)$ or $(4.81 +5.61)2.78$

Therefore, the expression that does not represent the total area in square feet of the two beds, is:

$(2.78+4.81)(2.78+5.61)$

6 0

3 years ago

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A+b+c=m,a2+b2+c2=n,a3+b3=p3. If c=0 then prove that m3+2p3=3mn

miskamm [114]

Answer:

raja don mein hoo kya problem he

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3 years ago

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12. A discount pass for a bridge costs $30 per month. The toll

a_sh-v [17]

It going to be 20 times a month

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2 years ago

Use the net as an aid to compute the surface area of the triangular prism. A) 108 cm2 B) 120 cm2 C) 132 cm2 D) 170 cm2

nadya68 [22]

Step-by-step explanation:

Since there is no diagram of the triangular prism that we are required to calculate it's surface area. We can just fix random dimensions in order to enable us understand what we are required to do.

Meanwhile, a triangular prism is a solid shape that possesses two parallel triangles or triangular faces and about three rectangles or rectangular faces.

Example 1:

Calculate the surface area of a triangular prism with side 8cm, base 6cm and height 7cm.

Formula for calculating the surface area of a triangular prism is;

ab + 3bh

Where a = side of the prism

b = base of one of the triangular faces

h = height not the triangular face/prism.

Here a = 8cm

b = 6cm

c = 7cm

Substituting properly;

(8 × 6) + 3(6 × 7)

= 48 + 126

= 174cm^2. The surface area of the triangular prism is 174cm^2.

Example 2.

A triangular prism with side 9cm, height 4cm and base 5cm will be wrapped with a sheet of wrapping foil. Calculate the surface area of this rectangular prism.

The formula for calculating the surface area of a triangular prism = ab + 3bh

Where a = side

b = base

h = height of prism

In this case, a = 9cm

b = 5cm

h = 4cm

Substituting appropriately, we will have:

(9 × 5) + 3(5 × 4)

45 + 60

= 105cm^2

So, the surface area of this triangular prism is 105cm^2

8 0

3 years ago

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