Answer:
see the explanation
Step-by-step explanation:
Let
x ------> the next grade
we know that
To find the average grade sum the grades by the number of math test
so

solve for x
Combine liker terms in the right side

Multiply by 5 both sides

Subtract 372 both sides

-----> this is not make sense
The grade cannot be a negative number
so
For x=0
The minimum average grade is

Answer:
116
Step-by-step explanation:
since this is a symmetrical shape, the angles on both sides will be the same
The milliliters of acid in the solution is 74.1 milliliters
<h3>How to determine the milliliters of acid in the solution?</h3>
The given parameters are:
Volume of the solution = 388 milliliters
Proportion of acid in the solution = 19.1%
The milliliters of acid in the solution is then calculated as:
Milliliters = Volume of the solution * Proportion of acid in the solution
Substitute the known values in the above equation
Milliliters = 388 milliliters * 19.1%
Evaluate the product
Milliliters = 74.1 milliliters
Hence, the milliliters of acid in the solution is 74.1 milliliters
Read more about proportions at:
brainly.com/question/1781657
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0.6364
On your calculator, type 7÷11.
You can alternatively do long division to come up with the answer.
The answer is 7.
there you go!