Answer:
no
Step-by-step explanation:
No since the divisor and dividend don't change by the same factor of 10.
The given equation is
![3z-19=173](https://tex.z-dn.net/?f=3z-19%3D173)
First, we add 19 on each side
![\begin{gathered} 3z-19+19=173+19 \\ 3z=192 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%203z-19%2B19%3D173%2B19%20%5C%5C%203z%3D192%20%5Cend%7Bgathered%7D)
Then, we divide the equation by 3
![\begin{gathered} \frac{3z}{3}=\frac{192}{3} \\ z=64 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Cfrac%7B3z%7D%7B3%7D%3D%5Cfrac%7B192%7D%7B3%7D%20%5C%5C%20z%3D64%20%5Cend%7Bgathered%7D)
<h2>Hence, z is equal to 64.</h2>
Answer:
The cost of each exercise book is 25 sh.
The cost of each pen is 8 sh.
Step-by-step explanation:
Write down the system of equations and then solve.
![\begin{bmatrix}7b+4p=207\\ 5b+5p=165\end{bmatrix}\\\\\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}\\\\b=25,\:p=8](https://tex.z-dn.net/?f=%5Cbegin%7Bbmatrix%7D7b%2B4p%3D207%5C%5C%205b%2B5p%3D165%5Cend%7Bbmatrix%7D%5C%5C%5C%5C%5Cmathrm%7BThe%5C%3Asolutions%5C%3Ato%5C%3Athe%5C%3Asystem%5C%3Aof%5C%3Aequations%5C%3Aare%3A%7D%5C%5C%5C%5Cb%3D25%2C%5C%3Ap%3D8)
Best Regards!
Answer: D I believe since 15 is 50% of 30
Step-by-step explanation: Sorry if I'm wrong, If I'm right can you mark brainliest :)
Answer:
40-80-42-1,000,000= -1,000,082
Step-by-step explanation:
bc calculator