Answer:
i realy dont known dude haaaaaaaahaaahahahah
Step-by-step explanation:
So x + y = 45, and 4x + 5y = 195. Get y by itself. Subtract x from both sides in the first equation to get y = 45 -x, and subtract 4x from the second equation to get 5y = 195 - 4x. Divide by 5 to both sides to get y = 39 - 4/5x. 39 - 4/5x = 45 - x. Add x to both sides to get 39 - 1/5x = 45. Subtract 39 from both sides to get -1/5x = 6. Divide by -1/5 to get x = -30, or 30. In the first equation, do 30 + y = 45. Subtract 30 from both sides to get y = 15. Check. 4(30) + 15(5) = 195, or 120 + 75 = 195.
Answer:
315
Step-by-step explanation:
because 15% of 2,100 is 315
It will be 16[tex] 16^{2} = 256
Answer:
y = -7x + 12
Step-by-step explanation:
<em>y = mx + b</em>
The <em>m </em>(slope) is -7 and the <em>y </em>is 12, substitute the numbers into the equation
