MATHEMATICS HIGH SCHOOL

Plan a recipe for 38 minutes of long distance calling using plan b she paid $4.13 for 59 minutes find the unit rate for each which plan cost more per minute

Answers

Answer 1

Answer:

Answer:

Plan A has a unit rate of approximately $0.1087 per minute.

Plan B has a unit rate of approximately $0.0700 per minute.

Step-by-step explanation:

Plan A:

38 minutes of long-distance calling

Total cost: $4.13

To find the unit rate for Plan A, divide the total cost by the number of minutes:

Unit Rate for Plan A = Total Cost / Number of Minutes

Unit Rate for Plan A = $4.13 / 38 minutes ≈ $0.1087 per minute

Plan B:

59 minutes of long-distance calling

Total cost: $4.13

To find the unit rate for Plan B, divide the total cost by the number of minutes:

Unit Rate for Plan B = Total Cost / Number of Minutes

Unit Rate for Plan B = $4.13 / 59 minutes ≈ $0.0700 per minute

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Wil offer 15 points to whoever can PLEASE answer this for me!! ill help with your question too

Answers

The area of the circle is 16*16*pi=256pi. We can calculate 3/4 of the circle's area for the part not represented by the triangle and the shaded area, and then add in the triangle. 3/4 of the circle's area is 192pi.

The triangle is a right triangle with two legs of length 16. Therefore, it's area is 16*16/2=128, and the total area is 192pi+128, or 731.2.

Change 12.39% to decimal

Answers

.1239
A decimal represents a value out of a whole, the "." representing everything under the amount of a whole (1). A percentage is essentially the same thing, except the "%" sign basically replaces the decimal. To convert a percentage to a decimal, move the decimal (and if there isn't one, add one to the right of the last number). Then, move that decimal two places to the right. For every empty space you move, add a zero there.

Which expression could be used to determine the cost of a $50 video game after a 20 percent discount?$50(0.20)
$50(1 – $50)(0.20)
$50 – 0.80
$50(0.80)

Answers

The expression that could be used to determine the cost of a $50 video game after a 20 percent discount is:

$50(0.80)

$50(0.80) = $40 discounted amount

$50 * 20% = 10 discount value
$50 - 10 = $40 discounted amount

If you would like to know the expression that could be used to determine the cost of a $50 video game after a 20 percent discount, you can do this using the following steps:

$50 - 20% of $50 = $50 - 20% * $50 = $50 - 20/100 * $50 = $50 - 1/5 * $50 = $50 - 0.20 * $50 = $50 * 0.80 = $40

The correct result would be $50(0.80).

The Moore family is adding a brick patio to their back yard. Mr. Moore is determining howmany square bricks he needs for his rectangular patio, as well as the cost. His sketch is
shown below and is not drawn to scale. Use the formula A=bh to help answer the questions
below.

Answers

I have attached an image showing the sketch and the questions to answer.

Answer:

7) $1.28 per brick paver

8) 64 Sq.inches

9) $0.02 per Sq.inches

10) 0.4444 Sq.ft

11) 120 Sq.ft

12) Number of paver to cover patio = 270

Cost of that number = $345.6

Step-by-step explanation:

7) from the image attached, we can see that a box of 12 pavers cost $15.36.

Thus,cost of each brick paver = 15.36/12

>> $1.28 per brick paver

8) we see on the right of the image attached that the dimension of the brick paver is 8 inches length and 8 inches width.

Thus; square inches is the area = 8 × 8 = 64 Sq.inches

9) 1 paver has an area of 64 Sq. Inches. Thus, 12 pavers has an area of;

12 × 64 = 768 Sq.inches

Since cost of 12 pavers is $15.36

Thus coat per Sq inches of the pavers = 15.36/768 = $0.02 per Sq.inches

10) To find the Sq.ft each paver would cover, we will first convert the dimensions of the paver to ft.

Thus;

Length of 8 inches = 8/12 ft

Width of 8 inches = 8/12 ft

Area = (8/12) × (8/12)

Area = 4/9 Sq.ft = 0.4444 Sq.ft

11) The patio measures;

Length = 12 ft

Width = 10 ft.

Thus;

Area = 12 × 10 = 120 Sq.ft

12) Each paver has an area of 4/9 Sq.ft.

Thus;

Number of pavers to cover the patio = area of patio/area of each paver

Number of pavers to cover patio = 120/(4/9) = 270 pavers

12 pavers cost $15.36

Thus, 270 pavers will cost;

270 × 15.36/12 = $345.6

Two rectangles have an area of 81 square inches. Name one possible perimeter for each rectangle.

Answers

60 inches (it would be a rectangle 3 by 27)
36inches (it would be a rectangle 9 by 9)

parameter is 30
means side are 3 and 27

If sydney answer 15 questions in the first section correctly what is the minimum number of questions she must have answered correctly in the second section

Answers

The question was incomplete. Below you will find the missing content.

The questions on the first section on a test value 3 points and the questions in the second section carries 5 points. if sydney answer 15 questions in the first section correctly what is the minimum number of questions she must have answered correctly in the second section.And the maximum points she scored is 80.

Answer:

Sydney must have answered at least 8 answers in the second section.

Concept

What is Inequality?

Inequality is a condition which compare algebraic expression using greater than(>), less than(<) symbols. It also shows values greater than equal to(≥), less than equal to(≤) and not equal to(≠) signs to solve the equation.