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The missing value is 21.
The ratio value of the double number line is
.
Solution:
Ratio of the given number line is
![$\frac{7}{2}=\frac{7\div1}{2\div1}=\frac{7}{2}](https://tex.z-dn.net/?f=%24%5Cfrac%7B7%7D%7B2%7D%3D%5Cfrac%7B7%5Cdiv1%7D%7B2%5Cdiv1%7D%3D%5Cfrac%7B7%7D%7B2%7D)
![$\frac{14}{4}=\frac{14\div2}{4\div2}=\frac{7}{2}](https://tex.z-dn.net/?f=%24%5Cfrac%7B14%7D%7B4%7D%3D%5Cfrac%7B14%5Cdiv2%7D%7B4%5Cdiv2%7D%3D%5Cfrac%7B7%7D%7B2%7D)
![$\frac{28}{8}=\frac{28\div4}{8\div4}=\frac{7}{2}](https://tex.z-dn.net/?f=%24%5Cfrac%7B28%7D%7B8%7D%3D%5Cfrac%7B28%5Cdiv4%7D%7B8%5Cdiv4%7D%3D%5Cfrac%7B7%7D%7B2%7D)
![$\frac{35}{10}=\frac{35\div5}{8\div5}=\frac{7}{2}](https://tex.z-dn.net/?f=%24%5Cfrac%7B35%7D%7B10%7D%3D%5Cfrac%7B35%5Cdiv5%7D%7B8%5Cdiv5%7D%3D%5Cfrac%7B7%7D%7B2%7D)
Hence the common ratio of the number line is
.
The missing ratio is
![$\frac{7}{2} =\frac{7\times3}{2\times3}= \frac{21}{6}](https://tex.z-dn.net/?f=%24%5Cfrac%7B7%7D%7B2%7D%20%3D%5Cfrac%7B7%5Ctimes3%7D%7B2%5Ctimes3%7D%3D%20%5Cfrac%7B21%7D%7B6%7D)
Hence the missing value is 21.
As 1 yard is equal to 3 feet , so 4 yard will be 12 feet !
so 13 foot > 4 yards
We know that
the points where the graph of the function crosses the y-axis is when <span>a function is evaluated with a zero, these points represent the y-intercept of the function
</span>
therefore
the answer is
Represent the y-intercept of the function
![\frac{(new) - (original)}{original} = \frac{\frac{3}{8}- \frac{5}{4} }{\frac{5}{4} }](https://tex.z-dn.net/?f=%5Cfrac%7B%28new%29%20-%20%28original%29%7D%7Boriginal%7D%20%3D%20%5Cfrac%7B%5Cfrac%7B3%7D%7B8%7D-%20%5Cfrac%7B5%7D%7B4%7D%20%7D%7B%5Cfrac%7B5%7D%7B4%7D%20%7D)
![\frac{3}{8} - \frac{5}{4} (\frac{2}{2}) = \frac{3}{8} - \frac{10}{8} = \frac{-7}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%20-%20%5Cfrac%7B5%7D%7B4%7D%20%28%5Cfrac%7B2%7D%7B2%7D%29%20%3D%20%5Cfrac%7B3%7D%7B8%7D%20-%20%5Cfrac%7B10%7D%7B8%7D%20%3D%20%5Cfrac%7B-7%7D%7B8%7D)
÷ ![\frac{5}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B4%7D)
=
* ![\frac{4}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B5%7D)
=
=
=
= -0.70
multiply by 100 to get the percent:<u> - 70%</u> <em>(the negative represents decrease)</em>
Answer: 70% decrease