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3 years ago

2.

Mathematics

1 answer:

Iteru [2.4K]3 years ago

5 0

answer:

x = 0.80

y = 1.50

step-by-step explanation:

x = cost of tacos

y = cost of burritos

both equations:

3x + 2y = 5.40

2x + 1y = 3.10

turn this | into this |

y = 3.10 - 2x

then add it to the equation :

3x + 2 [ 3.10 - 2x ] = 5.40

3x + 6.2 - 4x = 5.40

-1x = - 0.8

x= 0.80

then add x = 0.80 to the equations to get :

3 [ 0.80 ] + 2y = 5.40

2.4 + 2y = 5.40

2y = 3

y = 1.5

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Consider that the length of rectangle A is 10 cm and its width is 6 cm. Which rectangle is similar to rectangle A? A) A rectangl

Luba_88 [7]

Answer:

B) A rectangle with a length of 15 cm and a width of 9 cm

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

Verify each cases

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$\frac{10}{9}\neq \frac{6}{6}$

therefore

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case B) A rectangle with a length of 15 cm and a width of 9 cm

$\frac{10}{15}=\frac{6}{9}$

$\frac{2}{3}=\frac{2}{3}$

therefore

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case C) A rectangle with a length of 14 cm and a width of 7 cm

$\frac{10}{14}\neq \frac{6}{7}$

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therefore

The rectangle case D) is not similar to rectangle A

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3 years ago

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A recycling center pays $0.10 per aluminum can and $0.05 per plastic bottle. The cheerleading squad wants to

diamong [38]

Answer:

5000 aluminium cans

Step-by-step explanation:

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If they 500 they make 50 dollars

If they bring in 5000 they make 500 dollars

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3 years ago

The point (−3, 1) is on the terminal side of angle Θ, in standard position. What are the values of sine, cosine, and tangent of

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The angle is in the second quadrant so only the sine is positive .
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3 years ago

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Ilia_Sergeevich [38]

Answer:

Dog Pogo will fetch the frisbee 12 times in 4 minutes.

Step-by-step explanation:

Given:

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Number of times frisbee fetch by dog = 6 times

We need to find Number of times the dog can fetch the frisbee in 4 minutes.

First we will find number of frisbee fetch in minute.

In 2 minutes = 6 times frisbee fetched by the dog

so in 1 minute = Number of times frisbee fetched by the dog in 1 minute.

By using Using Unitary method we get;

Number of times frisbee fetched by the dog in 1 minute = $\frac{6}{2} =3$

Hence in 1 minutes the dog can fetch frisbee 3 times.

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3 years ago

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What is the solution of the following systems of equations? y = 1/2x y = -x -3

SVEN [57.7K]

Answer:

x = -2, y = -1

Step-by-step explanation:

System of Equations

Solve the system:

y = 1/2x

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2y = x

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y = -2y - 3

Adding 2y:

3y = -3

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And x = 2*(-1) = -2

Solution: x = -2, y = -1

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3 years ago