7m+2n=21
-7m -7m
<u>2n</u>=<u>21-7m</u>
2 2
n=<u>21-7m
</u> 2
<u>
</u>10m+4(21-7m/2)= -10
<u />-10m -10m
4(21-7m/2)= -10-10m
(84-28m/2)= -10-10m
x2 x2
84-28m = -20-20m
+20+28m +20+28m
<u>104</u> = <u>8m
</u>8 8
m=13
10(13) + 4n = -10
-130 -130
<u>4n</u> = <u>-140
</u>4 4
<u>
</u>n= -35
If anything is unclear please feel free to ask.
<span>y = x + 3 / 12
This is your answer.</span>
Answer: B. X+26<2x+16
Step-by-step explanation:
Let x be the number of lemonade Kaylee needs to sell to make a higher profit than Jason.
Given: Jason has made $26. he charge $1 per lemonade.
Total earnings after x lemonades = $26+($1) x
= $(26+x)
Kaylee has made $16. he charge $2 per lemonade.
Total earnings after x lemonades = $16+($2) x
= $(16+2x)
Required inequality : (16+2x)> (26+x)
i.e. correct option is B.
(x – h)² + (y – k)²<span> = r</span>²
Fill in the numbers
(x – 7)²<span> + (y +3)</span>²<span> = 49</span>
2.5% of 15,00$ would be 375$. Assuming the "simple interest" is yearly, you would multiply 375 by 8, which is 3000$ :P (Another way to solve this would be to multiply the 2.5 by 8, which would be 20. and 20% of 15,000$ would also be 3,000$)
