Answer:
I'm pretty sure its the 3rd answer
Answer:
540
Step-by-step explanation:
Amount of antifreeze in the 90% solution + amount of antifreeze in the 20% solution = amount of antifreeze in the 80% solution
0.90 x + 0.20 (90) = 0.80 (x + 90)
0.90 x + 18 = 0.80 x + 72
0.10 x = 54
x = 540
You need 540 gallons of 90% antifreeze solution.
The simplified form is 20x^2. Because you 2x*2, you get 4x. You multiply that by 5x, and then you get your answer.
2.60
so <em>5</em><em> </em><em>p</em><em>o</em><em>u</em><em>n</em><em>d</em><em>s</em><em> </em><em>o</em><em>f</em><em> </em><em> </em><em>p</em><em>e</em><em>p</em><em>p</em><em>e</em><em>r</em><em> </em><em>wou</em><em>ld</em><em> </em><em>c</em><em>o</em><em>s</em><em>t</em><em> </em><em> </em><em> </em><em> </em><em>3</em><em>.</em><em>2</em><em>5</em>
It would take her 10min to finish 35 hot dogs because 21 divided by 6 equals 3.5 so in six minutes she eats 3.5 hot dogs per minute. Multiply 3.5 by ten you get 35
