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2 years ago

If an relationship is proportional what is the missing value from the table?

Mathematics

1 answer:

Mariana [72]2 years ago

4 0

Answer : 12

Explanation :

In the first row of the table, we find that the -2 is the change, and in the third row -6 is the change.

Using this, we can find that the second row should have -4 subtracted from 16.

We know this because from looking at the changes from the first and second row, the differences multiply by two, as the rows increase. So -2 multiplied by 2 is -4, and 16 subtract 4 is 12.

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What is the common difference for this arithmetic sequence? -6, -2, 2, 6, 10, ...

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common difference: t2-t1

-2-6

-8

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2 years ago

Two student are reading a book. Keith reads 6 pages a day.tameka read 5 pages a day but he start sooner and has already read 15

NemiM [27]

Answer: Whoever read the 15 pages before read the most.

Step-by-step explanation:

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3 years ago

A box has a volume of 308 cm cubed. Its height is 4 cm greater than its length. Its length is 3 cm greater than its width. What

kifflom [539]

Answer:

4 cm.

Step-by-step explanation:

Given:

A box has a volume of 308 cm cubed.

Its height is 4 cm greater than its length.

Its length is 3 cm greater than its width.

Question asked:

What is the width of the box?

Solution:

Let width = $x\ cm$

Length = $x+3\ cm$

Height = $x+3+4=x+7\ cm$

As we know:

$Volume\ of\ box=length\times width\times height$

$308=(x+3)\times x\times(x+7)\\ \\ 308=(x^{2} +3x)(x+7)\\ \\ 308=x^{2} (x+7)+ 3x(x+7)\\ \\ 308=x^{3} +7x^{2} +3x^{2} +21x\\ \\ 308=x^{3} +10x^{2} +21x\\ \\ Subtract\ 308\ from\ both\ sides\\ \\ x^{3} +10x^{2} +21x-308=0\\ \\ factor\ left\ side\ of\ equation\\ \\ (x-4)(x^{2} +14x+77)=0\\ \\ Set\ factors\ equal\ to\ 0.\\ \\ x-4=0 \ or\ x^{2} +14x+77=0\\ \\ \\$

As width can never be in negative, $x= 4\ cm$

By substituting the value:-

Width = $x\ cm$ = 4 cm

Thus, width of the box is 4 cm.

4 0

2 years ago

A store was selling lawn mowers for $69. The repair

Natali5045456 [20]

Answer:

$84.87

Step-by-step explanation:

The mover costs $69

23% of 69 is $15.87

add the two together to get $84.87

(or just multiply 69 by 1.23)

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2 years ago

Read 2 more answers

Which idea was popularized in the United States by William Blackstone?

Monica [59]

Answer: Those accused of crimes should be considered innocent until

proven guilty.

Step-by-step explanation:

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2 years ago

If an relationship is proportional what is the missing value from the table?​

If an relationship is proportional what is the missing value from the table?