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prisoha [69]
2 years ago
7

What is the definition of fact family

Mathematics
1 answer:
makkiz [27]2 years ago
8 0

A fact family is a group of math facts using the same numbers.

Example:

Using the numbers: 5, and 2,

5 ∙ 2 = 10

2 ∙ 5 = 10

10 ÷ 2 = 5

10 ÷ 5 = 2

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The sum of 8 times a number and 15 is 7
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8x+15=7

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Which value of n makes the equation true?<br> 1/2(n+4)=6
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Step-by-step explanation:

1/2(12)=6

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Read 2 more answers
Line L is mapped onto the line t by a dilation centered at
STatiana [176]

The equation of line T is 2x - y = 7 ⇒ (6x - 3y = 21)

Step-by-step explanation:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size

  • If the equation of a  line is ax + by = k is dilated, with center origin and scale factor k, then the equation of the image of the line is kax + kby = kc
  • The line and its image are parallel
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Line L is mapped onto the line T by a dilation centered at the origin and  a scale factor of 3.

That means lint T is the image of line L after dilation

∵ The equation of line L is 2x - y = 7

∵ Line L is dilated by scale factor 3 and centered at origin

- That means multiply the equation of line L by 3 to find the

   equation of line t

∵ Line T is the image of line L after dilation

∴ The equation of line T is (3)(2x) - (3)(y) = (3)(7)

∴ The equation of line T is 6x - 3y = 21

<em>Very important note:</em>

The equation of line T is the same with equation of line L but multiplied by the scale factor 3 ⇒ L and T are coincide lines (same line)

That means the equation of lines T and L is 2x - y = 7

The equation of line T is 2x - y = 7 ⇒ (6x - 3y = 21)

Learn more:

You can learn more about dilation in brainly.com/question/2480897

#LearnwithBrainly

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3 years ago
F<br> 216<br> 1<br> 36<br> O<br> O<br> O<br> O<br> no solution<br> DONE
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join my kahoot

https://kahoot.it/challenge/09174317?challenge-id=67e37a3e-3175-473f-8bbe-bf5d0a6a5db5_1616009227053

Game PIN: 09174317

Step-by-step explanation:

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Deisha can build a fence in 15 hours, and Travis can build a fence in 12 hours. How long will it take them together to build a f
Basile [38]

Answer:

6\frac{2}{3}

Step-by-step explanation:

Deisha's build rate = 1 fence per 15 hours = 1/15 fences per hour

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Working together, their combined rate is 1/15 + 1/12 = 3/20 fences per hour

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