This advice is based upon your knowing the first ten or so perfect squares: {1, 4, 9, 16, ... } and their square roots. For example, the sqrt of 16 is 4.
I'd take the given number and determine where it stands among this list of perfect squares. For example, 20 would be between perfect squares 16 and 25.
We could surmise that the sqrt of 20 would be betwen the square roots of 16 and 25, which are, of course, 4 and 5.
We could do a bit better at estimating the sqrt of that number by interpolation. Note that sqrt(20) is closer to 4 than to 5. We could then surmise that the sqrt of 20 is a bit closer to 4 than to 5, e. g., sqrt(20) is approximately 4.4.
Using a calculator as a check: sqrt(20)= 4.47. Thus, our estimate was a bit on the low side: 4.4 instead of 4.47.
The number of student tickets is 175 and the number of adult tickets is 425.
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
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Given that:-
- A concert manager counted 600 ticket receipts the day after a concert. The price for a student ticket was $13.50, and the price for an adult ticket was $17.00. The register confirms that $9,587.50 was taken in
Suppose the number of the student ticket is St and adult are At.
St + At = 600
St = 600 - At
Another expression for the total amount will be given as:-
13.5St + 17At = 9587.50
Put the value of St in the equation to find the value of At.
13.5( 600 - At) + 17At = 9587.50
8100 - 13.5At +17At = 9587.5
17At - 13.5 At = 9587. 5 - 8100
3.5 At = 1487.5
At = 425
St + At = 600
St = 600 - At = 600 - 425 = 175
Therefore the number of student tickets is 175 and the number of adult tickets is 425.
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Answer:
the number of chocolates remains unsold is 5,472
Step-by-step explanation:
The computation of the number of chocolates remains unsold is given below:
= (Total boxes - sold boxes) × number of chocolates in each box
= (295 - 67) × 24
= 228 × 24
= 5,472 chocolates
hence, the number of chocolates remains unsold is 5,472
Answer:
263.76
Step-by-step explanation:
Assuming the shaded area is the yellow area all we must do is find the area of the small circle and subtract it from the larger circle.
To do this we can use the area of a circle equation:
first we need to find the radius of the large circle which is simply 4+6= 10
so the area would be:
then we find the area of the small circle is
next we evaluate:
Then replace pi with 3.14:
84 · 3.14 = 263.76
And you have your answer!
Hope this helps!
49 remainder of 3
Step-by-step explanation:
52 divided by 7 is 49 R 3
