3 years ago

Please hellllpppp really appreciated

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

5 0

2/5 divides by 4/1 = 1/10
X=1/10

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If there were 45 cars In a line that stretched 454 feet, what is the average car length?

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Divide 45 on both sides to get the average length of a single car

1 car = 10.01 ft

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Pls answer, and be clear on which one your answering, thank youuu!! Very thankful worth 30 points!! :) <333

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The mistake Shawna made was in her answer the 54 repeats so the bar should be over the .54 not the .545

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IN (3)

svetoff [14.1K]

Answer:

(a) Rule: Multiply the input (x) by 2 and add 5 to the result of the product

(b) $y =2x +5$

Step-by-step explanation:

Given

The attached table

Solving (a): The rule of the table in words

First, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Using:

$(x_1,y_1) = (2,9)$

$(x_1,y_1) = (10,25)$

So, we have:

$m = \frac{25 - 9}{10 - 2}$

$m = \frac{16}{8}$

$m=2$

The equation is calculated using:

$y - y_1 =m(x - x_1)$

Using:

$(x_1,y_1) = (6,17)$

We have:

$y - 17 =2(x - 6)$

$y - 17 =2x - 12$

Make y the subject

$y =2x - 12+17$

$y =2x +5$

Hence, the rule is:

Multiply the input (x) by 2 and add 5 to the result of the product

(b): The rule, in algebra

As solved in (a), the rule is:

$y =2x +5$

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The area including cutout is 15*8=120
the area of cutout is 5*5=25

120-25=95 cm²

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