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vodka [1.7K]
3 years ago
6

Find the value of x. 7/10=x/105

Mathematics
1 answer:
GalinKa [24]3 years ago
3 0

Answer:

The value of x is 73.5.

Step-by-step explanation:

Given:

7/10=x/105.

Now, to find the value of x.

\frac{7}{10} =\frac{x}{105}

So, to get the value of x we use cross multiplication:

\frac{7}{10} =\frac{x}{105}

By cross multiplying we get:

735=10x

By dividing both sides by 10 we get:

73.5=x

x=73.5

Therefore, the value of x is 73.5.

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Given a circle with a radius of 0.85 meters, find the area of 1/3 of the circle. Use 3.14 for pi and round to the nearest hundre
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a woman buys a plot of land of area 0.36hectares she pays $8.50 per square meter for the land what is it's total cost​
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Answer:

$30,600

Step-by-step explanation:

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3 0
3 years ago
What are the values of m and n in the matrix addition below?
Aleksandr [31]

ANSWER

The correct answer is m=45,n=12.

<u>EXPLANATION</u>

We were given the matrix equation;

\left[\begin{array}{cc}n-1&6\\-19&m+3\end{array}\right] +\left[\begin{array}{cc}-1&0\\16&-8\end{array}\right] =\left[\begin{array}{cc}10&6\\-3&40\end{array}\right].


We must first simplify the Left Hand Side of the equation by adding corresponding entries.


\left[\begin{array}{cc}n-1+-1&6+0\\-19+16&m+3-8\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right].


That is;


\left[\begin{array}{cc}n-2&6\\-3&m-5\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right].

Since the two matrices are equal, their corresponding entries are also equal. we equate corresponding entries and solve for m and n.


This implies that;


n-2=10


We got this equation from row one-column one entry of both matrices.


n=12


Also, the row three-column three entries of both matrices will give us the equation;


m-5=40


m=45


Hence the correct answer is m=45,n=12.


The correct option is option 2






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