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STatiana [176]
1 year ago
11

Can someone help me with 5-9 please?!?!? Thank you

Mathematics
1 answer:
valina [46]1 year ago
3 0

5 is 1!!!!!!

Step-by-step explanation:

im sorry i dont know the others

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PLEASE HELP 2O POINTS
vovangra [49]
C. The first is a solution, but the second is not.

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5(2) - (-9/3) = 13 
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10 + 3 = 13 ;
13 = 13

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Myra is a scientist and needs 45 gallons of a 16% acid solution. The lab is currently stocked only with a 20% acid solution and
asambeis [7]

Answer:

The volume of the solution with 20% acid is 27 gallons and the one with 10% acid is 18 gallons

Step-by-step explanation:

Myra needs to mix "x" gallons of the solution with 20% and "y" gallons of the solution with 10%. The volume of the final solution must be 45 gallons, therefore:

x + y = 45

The concentration of acid of the final solution is:

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y = 45 - 27  = 18 gallons

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