Answer:
7
Step-by-step explanation:
The value of the given expression is ![\frac{-13}{20}.](https://tex.z-dn.net/?f=%5Cfrac%7B-13%7D%7B20%7D.)
Solution:
Given expression is
.
Let us first convert mixed fraction into improper fraction.
![3\frac{2}{5}=\frac{(3\times5)+2}{5}=\frac{17}{5}](https://tex.z-dn.net/?f=3%5Cfrac%7B2%7D%7B5%7D%3D%5Cfrac%7B%283%5Ctimes5%29%2B2%7D%7B5%7D%3D%5Cfrac%7B17%7D%7B5%7D)
Substitute this in the given expression.
![\frac{3}{4} \times3\frac{2}{5}-\frac{5}{5}=\frac{3}{4} \times\frac{7}{15}-\frac{5}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D%20%5Ctimes3%5Cfrac%7B2%7D%7B5%7D-%5Cfrac%7B5%7D%7B5%7D%3D%5Cfrac%7B3%7D%7B4%7D%20%5Ctimes%5Cfrac%7B7%7D%7B15%7D-%5Cfrac%7B5%7D%7B5%7D)
![=\frac{21}{60}-\frac{5}{5}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B21%7D%7B60%7D-%5Cfrac%7B5%7D%7B5%7D)
To simplify the above expression, 21 and 60 are cancelled by 3.
![=\frac{7}{20}-\frac{1}{1}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B7%7D%7B20%7D-%5Cfrac%7B1%7D%7B1%7D)
Do cross multiplication to make the denominator same.
![=\frac{7}{20}-\frac{20}{20}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B7%7D%7B20%7D-%5Cfrac%7B20%7D%7B20%7D)
![=\frac{7-20}{20}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B7-20%7D%7B20%7D)
![=\frac{-13}{20}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B-13%7D%7B20%7D)
The value of the given expression is ![\frac{-13}{20}.](https://tex.z-dn.net/?f=%5Cfrac%7B-13%7D%7B20%7D.)
Answer:
X=84
Step-by-step explanation:
180(the sum of the interior triangle angles) - [(180-130)+(180-134)]
The answer is gonna be C,which is 91.Hope this helps
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