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3 years ago

You and two friends buy snacks for a field trip. Using the

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

Answer:

13.15

Step-by-step explanation:

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How do you find 10% of 9900

Serhud [2]

Step-by-step explanation:

$10\% \: of \: 9900 \\ \\ = \frac{10}{100} \times 9900 \\ \\ = 10 \times 99 \\ \\ = 990$

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3 years ago

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A customer buys bouquets of tulips and bouquets of roses for $.. What is the price of a bouquet of roses?

olchik [2.2K]

Question:

A customer buys bouquets of tulips and bouquets of roses for $40.25. The bouquet contained 17 tulips and cost $18.25. What is the price of a bouquet of roses?

Answer:

$Rose =\$22.00$

Step-by-step explanation:

Given

$Total = \$40.25$

$Tulips = \$18.25$

Required

The cost of a bouquet of roses

Since the customer bought a bouquet each, the formula to use is:

$Total = Tulip + Rose$

Make Rose the subject

$Rose =Total - Tulip$

$Rose =\$40.25 - \$18.25$

$Rose =\$22.00$

<em>A bouquet of rose costs $22.00</em>

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2 years ago

The height of a pyramid-shaped sculpture with a square base is one half the length of each side. The volume of the sculpture is

Nimfa-mama [501]

The volume of a pyramid is V = 1/3 x base length^2 x height

Let X = base length.

We are told the height is 1/2 the length, so height would be 1/2x

Now we have:

972 = 1/3 * x^2 * 1/2x

Simplifying we get:

972 = 1/6x^3

Multiply both sides by 6:

5832 = x^3

Take the cube root of both sides:

x = 18

The length of the base is 18 inches.

The height is 1/2 that, so the height would be 18/2 = 9 inches.

4 0

3 years ago

Helena wants to paint a box in the shape of a cube with sides that are 18 inches long. what is the surface area that Helena will

yan [13]

Answer:

1944 Inches Squared

Step-by-step explanation:

Surface area Formula for a Cube:

$A = 6a^2$

The "edge", which is also the side, is 18 inches.

$a = 18$

Solve the formula.

$A= 6a^2 = 6(18)^2 = 6 * 18^2\\18^2 = 324\\324 * 6 = 1944\\A=1944$

The cube's surface area should be 1944 square inches.

5 0

3 years ago

Find the annual interest rate.

Virty [35]

!!ANSWERS!!

1: 10%

2: 8%

3: 1.25%

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2 years ago

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