3 years ago

What is the answer to this?!

Mathematics

2 answers:

lesya [120]3 years ago

8 0

15/8. Hoped this helped!

Inessa05 [86]3 years ago

3 0

The answer is in mixed number form is 1 7/8

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Eli attended a concert. The decibel level of the music averaged 110 decibels but varied by 28 decibels from the average. Enter a

musickatia [10]

Answer:

The decibel range is $82\leq d\leq 138$

Step-by-step explanation:

Let

d -----> the decibel level of the music

we know that

The absolute value of the difference of the decibel level of the music and its average, must be less than or equal to 28 decibels

The absolute value that represent this problem is

$\left|d-110\right|\le28$

Solve the absolute value

First solution (positive)

$+(d-110)\le28$

Adds 110 both sides

$d\le28+110$

$d\le138$

Second solution (negative)

$-(d-110)\le28$

Multiply by -1 both sides

$(d-110)\ge-28$

Adds 110 both sides

$d\ge-28+110$

$d\ge82$

therefore

The decibel range is

$82\leq d\leq 138$

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4 years ago

a coffee canister holds 12 ounces of coffee a cofee scoop holds 3/4 of an ounce of coffee how many scoop of cofee are in caniste

Anvisha [2.4K]

12 divded by 3/4 = 1 so the answer is 1

6 0

3 years ago

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Each square on Laura's chessboard is 13 square centimeters. A chessboard has 8 squares on each side. To the nearest hundredth, w

Marat540 [252]

If x is width of one square, then width of board is 8x.

Area of a square = x^2 = 13
$x = \sqrt{13}$

$8x = 8\sqrt{13}$

Answer:
$8\sqrt{13} cm$

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3 years ago

Which expression is equivalent to -2 - 7 -2 - (-7) 2 - 7 -2 + (-7) 2+7

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Answer:

Step-by-step explanation:

-2+ (-7) = -2 - 7

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Triss [41]

Answer:

D is the correct answer

Step-by-step explanation:

first you subtract the 3 from the left side and add it to the right side. then you divide both side by negative 3 and flip the less than sign to a greater than sign

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