Answer: There were 290 downloads of the high-quality version.
Step-by-step explanation:
Let be "s" the number of downloads of the standard version and "h" the number of downloads of the high-quality version.
Set up a system of equations:
![\left \{ {{s+h=1040 } \atop {2.1s+4.1h=2764}} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Bs%2Bh%3D1040%20%7D%20%5Catop%20%7B2.1s%2B4.1h%3D2764%7D%7D%20%5Cright.)
You can use the Elimination method. Multiply the first equation by -2.1, add the equations and then solve for "h":
![\left \{ {{-2.1s-2.1h=-2184} \atop {2.1s+4.1h=2764}} \right.\\..............................\\2h=580\\\\h=\frac{580}{2}\\\\h=290](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7B-2.1s-2.1h%3D-2184%7D%20%5Catop%20%7B2.1s%2B4.1h%3D2764%7D%7D%20%5Cright.%5C%5C..............................%5C%5C2h%3D580%5C%5C%5C%5Ch%3D%5Cfrac%7B580%7D%7B2%7D%5C%5C%5C%5Ch%3D290)
Therefore, there were 290 downloads of the high-quality version.
Ur answer is either C or D
Answer:
the answer is D, 8
Step-by-step explanation:
Hope this helps!❆
Your answer is C because 12•10= 12