Let the difference between consecutive terms be D. If the middle term is 30, then the term before it is 30-D, and the term after it is 30+D. So the sum of these three terms would be (30-D) + 30 + (30+D) = 3*30.
Extending this sum to include all 11 terms centered around 30, we see that any addition of D is canceled by a balanced subtraction, leaving you with 11 copies of 30. So the value of the sum is 11*30 = 330.
Answer:
The ratio of her savings to expenditure <u>1 : 7</u>.
Step-by-step explanation:
Given:
Neelam's annual income is Rs. 288000.
Her annual savings amount to Rs. 36000.
Now, to get the ratio of her savings to her expenditure:
So, we get the expenditure first:
Expenditure = Income - Savings.
Expenditure = 288000 - 36000 = Rs. 252000.
Now, <em>the ratio of savings to expenditure:</em>
Thus, Savings:Expenditure = 1:7.
Therefore, the ratio of her savings to expenditure 1 : 7.
The equation that represents the cab's total charge is y = 3x + 5 , Option A is the correct answer.
<h3>What is an Equation ?</h3>
A statement that relate two expressions with an equal sign is called an Equation.
It is given that
A cab company charges a $5 boarding
Charges for every mile is $3 per mile
Let x be the mile travelled
The cab's total charge is represented by y
then y = 3x + 5
Therefore the equation that represents the cab's total charge is y = 3x + 5 , Option A is the correct answer.
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