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natka813 [3]
3 years ago
7

The sum of two consecutive numbers is 73. what are the numbers?

Mathematics
2 answers:
brilliants [131]3 years ago
6 0
Hey there!

2x+1=73.
2x=72.
x=36<span>.
</span>
So the 2 consecutive numbers are 72 and 36!


Hope this helps! :)
zmey [24]3 years ago
3 0
Hey there,
Let's say 1 number is x,
1st = x
2nd = x+1
x+x+1 = 73
2x + 1 =73
2x = 73 - 1
2x = 72
x = 72 / 2
   = 36 
1st = 36 
2nd = 37

Hope this helps :))

~Top
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Answer:

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Step-by-step explanation:

Given the matrices

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Calculating AB:

\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}

Multiply the rows of the first matrix by the columns of the second matrix

                                   =\begin{pmatrix}1\cdot \:1+\left(-1\right)\cdot \:3&1\cdot \:2+\left(-1\right)\cdot \:4\\ 2\cdot \:1+1\cdot \:3&2\cdot \:2+1\cdot \:4\end{pmatrix}

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Hence,

\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}=\begin{pmatrix}-2&-2\\ \:5&8\end{pmatrix}

Therefore,

\:c_{11}=-2,\:\:\:c_{12}=-2

\:c_{21}=5,\:\:\:c_{22}=8

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