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3 years ago

6

Staci has 13 pieces of rope, each piece is 5 feet long. What is the least number of pieces that she needs to tie together to mak

e a length that is at least 12 yards long? Please help now

1 answer:

Afina-wow [57]3 years ago

5 0

Answer:

5,10 ,15,20,25,30,35,60,65,70,75,80,85

Step-by-step explanation:

IT WOULD BE 85

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The best estimate for the length of a car is about 13-15 feet wide.

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3 years ago

If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Studentka2010 [4]

A number is :

$x$

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Three quarters of it means :

$\frac{3}{4}x \\$

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Decrease by 20 means :

$\frac{3}{4}x - 20 \\$

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Equals to 82 means :

$\frac{3}{4}x - 20 = 82 \\$

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What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$\frac{3}{4}x - 20 = 82 \\$

Plus sides 20

$\frac{3}{4}x = 82 + 20 \\$

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Multiply sides by 4

$3x = 102 \times 4$

Divided sides by 3

$x = \frac{102 \times 4}{3} \\$

$x = \frac{102}{3} \times 4 \\$

Simplify

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So that number is 136 .

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And we're done.

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3 years ago

What is the median for this set of numbers 10,9,23,68,70,4,12,4

vesna_86 [32]

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2 years ago

A rectangle has vertices (8, 6), (4, 6), (8, −4), and (4, −4). What are the coordinates after dilating from the origin by a scal

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Step-by-step explanation:

Given: The coordinates of the original rectangle are (8, 6), (4, 6), (8, −4), and (4, −4). We know that the coordinates of the image after dilation from the origin by a scale factor of k is given by:_

$(xy)\rightarrow(kx,ky)$

Then, the coordinates of the image after dilation from the origin by a scale factor of 1.5 are given by:_

(8, 6)→ $(8\times1.5,6\times1.5)=(12,9)$

(4, 6)→ $(4\times1.5,6\times1.5)=(6,9)$

(8, −4) → $(8\times1.5,-4\times1.5)=(12,-6)$

(4, −4)→ $(4\times1.5,-4\times1.5)=(6,-6)$

Hence, the coordinates of the image after dilation from the origin by a scale factor of 1.5 are (12,9), (6,9), (12,-6) and (6,-6).

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