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3 years ago

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18 An architect diagrams two sidewalks to go between the pool, grass, and seating areas as shown below. у Sedang Distance (meter

s) 600 Nom grass pool 1 1 2 3 4 5 6 7 8 4 7 8 x

2 answers:

Tcecarenko [31]3 years ago

3 0

Answer:

Step-by-step explanation:pool or grass

ale4655 [162]3 years ago

3 0

Answer: The answer is C

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At the taco truck an order of 1 taco and 3 quesadillas cost $ 26.50. An order if 3 tacos and 1 quesadilla cost $19.50. for 5 tac

gladu [14]

Answer:

The cost of 1 taco = $4

The cost of 1 quesadilla = $7.50

Step-by-step explanation:

Let the cost of tacos be x and the cost of quesadillas be y.

<h3><u>Given condition:</u></h3>

x + 3y = 26.50 ------------------(1)

3x + y = 19.50 -------------------(2)

Multiply Eq. (2) by 3

3(3x + y) = 19.50 * 3

9x + 3y = 58.5 -----------------(3)

Subtract Eq. (3) from (1)

x + 3y - 9x - 3y = 26.50 - 58.50

x - 9x = -32

-8x = -32

8x = 32

Divide 8 to both sides

x = $4

Put x = 4 in (1)

4 + 3y = 26.50

Subtract 4 to both sides

3y = 26.50 - 4

3y = 22.50

Divide 3 to both sides

y = $7.50

So,

The cost of 1 taco = $4

The cost of 1 quesadilla = $7.50

$\rule[225]{225}{2}$

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2 years ago

A desest tortoise spends about 95% of its life in underground burrows.About what fraction of a desert tortoise's life is spent a

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5/100's tortoise's life was spent above ground.

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4 years ago

a square green rug has a yellow square in the center. The side of the yellow square is x inches the width of the green band that

Bingel [31]

Answer:

28x +196 in^2

Step-by-step explanation:

The outside dimension of the square green rug is (x+14), so its area is (x+14)^2. The area of the green band will be the difference between this and the area of the yellow square, (x^2).

green band area = (x +14)^2 -(x^2) = x^2 +28x +196 -x^2

green band area = 28x +196 . . . . square inches

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4 years ago

Ned is riding his bike from his house to the park, both of which are on the same straight road. On his way, he stops at a store,

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Answer:

Step-by-step explanationcl:

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4 years ago

Sides AB and DC of the rectangle are increased in length by 50% and sides AD and BC are decreased in length by 50%. What is the

emmainna [20.7K]

The percentage of change in the area of the rectangle is -25% ⇒ B

Step-by-step explanation:

The given is:

Sides AB and DC of the rectangle are increased in length by 50%
Sides AD and BC are decreased in length by 50%

We need to find the percentage change in the <em>AREA</em> of the rectangle

Assume that the length of AB ans DC is x units, and the length of AD and BC is y units

∵ The length of the sides AB and DC increased by 50%

∵ The length of AB and CD = x

- That means x will increase by 50% of x

∵ 50% of x = (50 ÷ 100) × x = 0.5 x

∴ The length is increased by 0.5 x

∴ The new length of AB and CD = x + 0.5 x = 1.5 x units

∵ The length of the sides BC and AD decreased by 50%

∵ The length of BC and AD = y

- That means y will decrease by 50% of y

∵ 50% of y = (50 ÷ 100) × y = 0.5 y

∴ The length is decreased by 0.5 y

∴ The new length of BC and AD = y - 0.5 y = 0.5 y units

∵ The area before the change = x × y = xy units²

∵ The area after the change = 1.5 x × 0.5 y = 0.75 xy units²

∵ The new area is less than the old area

∴ The area is decreased

- To find the the percentage of change in the area subtract the

new area from the old area and divide the difference by the

old area and then multiply the quotient by 100%

∴ The percentage of the change = $\frac{xy-0.75xy}{xy}$ × 100%

∴ The percentage of the change = $\frac{0.25xy}{xy}$ × 100%

∴ The percentage of the change = 0.25 × 100%

∴ The percentage of the change = 25%

∴ The area of the rectangle is decreased by 25% ⇒ (-25%)

The percentage of change in the area of the rectangle is -25%

Learn more:

You can learn more about the percentage in brainly.com/question/12960754

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