Answer: The correct option is (D) pie.
Step-by-step explanation: We are to select the correct number that produces an irrational number when multiplied by pie.
We know that if one of number is a non-zero rational number, then for the product to be irrational, we must have the other number irrational.
Give number is 2/5, which is rational. So the other number must be irrational.
Out of the given options, first three numbers are rational.
Only the last number pie is irrational. Because, the digits after the decimal are non-repeating and non-terminating.
So, the product will be irrational, if the other number is pie.
Thus, the correct option is (D).
To answer this question we need to write all the numbers in percentage form:
Swim 88.2%
Vidisha 75%
Sue 84%
Manuela 79%
Alexa 87.5%
Then the list would be Vidisha, Manuela, Sue, Alexa and Swim, therefore the answer is d.
Answer:
He needs to buy 6 and 3/4 more pints.
Step-by-step explanation:
In order to find this, we first need to find out how much he has used. To do this, add together the two fractions of the whole that he has used.
2/5 + 3/10
4/10 + 3/10 = 7/10
Since he has used 7/10 of it already, we can multiply that by the original amount to find how much is gone.
7/10 * 20 = 14
So with 14 pints having been used, we know there is 6 pints left. To find how many more he needs to buy, subtract 6 from the amount he needs for the next painting.
12 and 3/4 - 6 = 6 and 3/4
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Answer:
Cost of article before tax is 120.
Step-by-step explanation:
It says cost of an article including 15% tax is 138.
So, let the cost of article without tax as 'x'
So, we can set up equation as
x+15%(x)=138
Simplify it
x+0.15x=138
1.15x=138
Divide both sides by 1.15
x=120
So, cost of article before tax is 120.