Answer:
See Below
Step-by-step explanation:
Graph:
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A store is having a 20% off sale. If the reduced price of an item is $66.40, what was it's original price?
2 answers:
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Here is your answer:
In order to solve this question you must:
1. Convert the word problem into a math problem....
2. Remember that a positive times a negative equals a negative....
3. Then you should have your answer!
Three times negative five
Positive times a negative equals a negative.
Therefore your answer is "-15."
Hope this helps!
Nonportrit
Answer:
volume= 56.55 yds
Step-by-step explanation:
If you're looking for the volume, the formula is .
Diameter is two times the radius (radius is half of the diameter) so the radius of the cylinder would be 1.5 yds.
After you've gotten that information, plug those values into the formula.
Solve 1.5^2 first. Then multiply that value by pi. Then multiply that value by the height which is 8yds.
Volume=56.55yds rounded to the nearest hunderedth.
Answer:
33 questions.
Step-by-step explanation:
Let x = 4 points questions.
Let y = 8 points questions.
<em>Translating the word problem into an algebraic equation;</em>
For the total number of questions;
.........equation 1
For the total number of points;
..........equation 2
<u>Given the following data;</u>
Total number of questions = 65
Total number of points = 333
<em>Solving the linear equation by using the substitution method;</em>
<em>Making x the subject in equation 1:</em>
.......equation 3
<em>Substituting "x" into equation 2;</em>
<em>Simplifying the equation, we have;</em>
<em>Rearranging the equation, we have;</em>
y = 32 (For the 8 points question).
<em>Substituting "y" into equation 3;</em>
x = 33 (For the 4 points question).
<em>Therefore, the number of 4 point questions on the test are 33 questions. </em>