Answer:
A
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
Try this:
1) note that weight of pure antifreeze before mixing and after mixing is the same. So, if 'x' is weight of pure antifreeze in 50% solution, it is possible to make up equation before mixing: 0.5x+0.2*90.
2) there are 0.2*90=18 gal. of pure antifreeze in the 20% solution. If 'x' gal. is the weight of pure antifreeze in 50% sol. and 18 gal. is the weight of pure antifreeze in 20% sol., it is possible to make up an equation after mixing: 0.4(x+18).
3) using the both parts: 0.5x+0.2*90=0.4(x+18) ⇒ x=54 gal. of <u>pure</u> weight.
4) to find 50% solution of 54 gal. pure weight just 54:0.5=108 gal.
Answer: 108 gal.
Answer:
Abel has 30
Bob has 19
Step-by-step explanation:
, is shifted 3 units left. the result is g(x) is,
<h3>What exactly is a function?</h3>
A function is a statement, rule, or law that specifies the connection between two variables.
Functions are common in mathematics and are required for the formulation of physical connections.
The given function is;
The given function is shifted 3 units left. It is can be obtained by drawing the graph for both functions.
The graph for both functions is attached below and shows that function is shifted 3 units left.
Hence, the value of 
.
To learn more about the function, refer to:
brainly.com/question/5245372
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