Maël mixes 151515 milliliters (\text{mL})(mL)left parenthesis, start text, m, L, end text, right parenthesis of bleach with 3.753.753, point, 75 liters (\text{L})(L)left parenthesis, start text, L, end text, right parenthesis of water to make a sanitizing solution for a daycare. The amounts of bleach and water always have to be proportional when he makes sanitizing solution. Which of the following could be combinations of volumes of bleach and water for Maël's sanitizing solution? Choose 3 answers: Choose 3 answers: (Choice A) A 12\,\text{mL}12mL12, start text, m, L, end text bleach and 3\,\text{L}3L3, start text, L, end text water (Choice B) B 6\,\text{mL}6mL6, start text, m, L, end text bleach and 1.5\,\text{L}1.5L1, point, 5, start text, L, end text water (Choice C) C 3\,\text{mL}3mL3, start text, m, L, end text bleach and 0.75\,\text{L}0.75L0, point, 75, start text, L, end text water (Choice D) D 20\,\text{mL}20mL20, start text, m, L, end text bleach and 5.5\,\text{L}5.5L5, point, 5, start text, L, end text water (Choice E) E 11\,\text{mL}11mL11, start text, m, L, end text bleach and 3.75\,\text{L}3.75L3, point, 75, start text, L, end text water

y=mx+

step-by-step explanation:

it will be a cylinder. with a diameter of 8 and 4 single pieces high

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.