Answer:
equation :water remaining in pool after 30 mins= 0.027X
answer = 67.5 Gallon
Step-by-step explanation:
Given
quantity of water in pool = 2500 gallon
percentage of water lost every 10 mins = 70%
therefore percentage of water remaining in pool = (100- 70)% = 30%
Let the quantity of water in pool be X gallon
% of water remaining in gallon after 10 mins = 30% of X = 0.3X
% of water remaining in gallon after another 10 mins = 30% of water at 10 mins = 30% of 0.3 X = 0.3 * 0.3X = 0.09 X
% of water remaining in gallon after another 30 mins = 30% of water present at 20 minutes = 30% of 0.09 X = 0.3 * 0.09X = 0.027X
Therefore equation of water remaining after 30 mins is = 0.027 X
Substituting value of initial quantity of water in the above equation we get the volume pf water remaining in pool after 30 mins = 0.027 * 2500
= 67.5 gallons
Area of a right triangle = .5 * leg1 * leg2
Area = .5* 24
Area = 12 square inches
Answer:
4
Step-by-step explanation:
She can use a dime and a quarter to buy one package. With 3 dimes and more than 3 quarters, she can buy 3 packages this way.
She can use 2 nickels and a quarter to buy one package. With 2 nickels and the 2 remaining quarters, she can buy 1 package this way.
Mae-Ying can buy 4 packages, and will have 1 quarter left over.
_____
You can add up her money and divide by 35¢ to find the number of packages. Doing that, you get ...
5·0.25 +3·0.10 +2·0.05 = 1.25 +0.30 +0.10 = 1.65
Then 1.65/0.35 ≈ 4.71, so Mae-Ying can buy 4 packages with the money she has.
Simplifying the expression gives 36x^2 - 82x - 10 = 0
<h3>How to simplify the expression</h3>
Given the expression;
4x-5/3+2x=7+2/9x+2
Cross multiply
Expand the bracket
Collect like terms
36x^2 + 8x - 45x - 27x - 18x = 0
Add the like terms
36x^2- 82x - 10 = 0
Thus, simplifying the expression gives 36x^2- 82x - 10 = 0
Learn more about algebraic expressions here:
brainly.com/question/723406
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