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Rufina
2 months ago
14

Consider the equations shown: ax + by = ab & 2ax + 3by = 3b

Mathematics
1 answer:
AnnZ [12.3K]2 months ago
6 0

Respuesta: y=3-2a, Opción 4

Explicación paso a paso:

\left \{ {ax + by = ab} \atop {2ax + 3by = 3b}} \right.

multiplica 2 en ax+by=ab

2ax+2by=2ab

resta 2ax + 3by = 3b y 2ax+2by=2ab

by=3b-2ab

y=3-2a

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Suppose that a student is randomly selected from a large high school. The probability that the student is a senior is 0.22. The
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Answer: La probabilidad que necesitamos es 0.16.

Step-by-step explanation:

Se nos proporciona que

La probabilidad de que el estudiante sea un senior = 0.22

La probabilidad de que el estudiante tenga una licencia de conducir = 0.30

La probabilidad de que el estudiante sea un senior o tenga una licencia de conducir = 0.36

Buscamos la probabilidad de que el estudiante sea un senior y tenga licencia de conducir.

Según la pregunta,

P(S\cap D)=P(S)+P(D)-P(S\cup D)\\\\P(S\cap D)=0.22+0.30-0.36\\\\P(S\cap D)=0.16

Por lo tanto, la probabilidad que necesitamos es 0.16.

3 0
2 months ago
Karl records the number of city blocks from his house to each of his friends houses. which statement is supported by the data?
AnnZ [12381]

Response:

Thorough analysis:

I believe that option 4 is the right choice

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2 months ago
On a coordinate plane, 2 trapezoids are shown. The first trapezoid has points A (negative 1, negative 2), B (1, negative 2), C (
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The translation rule can be expressed as T -3,1(x,y). The translation can also be indicated as (x,y)➡️(x-3,y+1).
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1 month ago
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Explain the steps for dividing decimals. Write three or four sentences.
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Response:

Step-by-step explanation:

Shift the decimal points in both the divisor and the dividend.

Transform the divisor (the number you're dividing by) into a whole number by moving its decimal to the furthest right. Simultaneously, adjust the dividend's decimal (the number being divided) the same number of places to the right.

In the quotient (the result), place a decimal point directly over where the decimal point is now located in the dividend.

Proceed with the division as normal, ensuring proper alignment so the decimal point appears correctly.

Align each digit in the quotient directly over the last digit of the dividend utilized in that step.

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2 months ago
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A rectangular garden is 6 feet long and 4 feet wide. A second rectangular garden has dimensions that are double the dimensions o
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Response:

100 percent increase

Detailed explanation:

1st garden

Length = 6 ft

Width = 4 ft

Perimeter = 2 (l+w)

                 = 2 (6+4) = 2(10) = 20

2nd garden

The length and width of this garden are double those of the first

Length = 2 *6 = 12

Width = 2 *4 = 8

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Substituting values in

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1 month ago
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