Answer:
12.
Step-by-step explanation:
12^1/2 * 12^1/2
= 12^(1/2 + 1/2)
= 12^1
= 12.
Answer:
Total interest after 5 years = $48.77 to the nearest cent.
Step-by-step explanation:
The first $50 grows to 50 * 1.06^5 = 66.911 = $16.911 interest.
The 2nd $50 grows to 50*1.06^4 = 63.124 = $13.124 interest.
3rd grows to 50*1.06^3 = 59.551 = $9.551 interest
4th grows to 50 *1.06^2 = 56.18 = $6.18 interest
5th grows to 53 = $3 interest.
Total interest = $16.911 + $13.124 + $9.551 + $6.18 + $3
= $48.77.
The median is 17. The mean is 28.5. Hope this helps!
Answer:
the answer is 607 divided by 12 which is going to give you 50,53
Answer:
Step-by-step explanation:
The area of the wall is the sum of the areas of the different sections of the wall. The cost to paint it will be the product of the cost of a tin of paint and the number of tins required.
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Here, the shape of the wall can be divided into two trapezoids and a rectangle. Each shape has a corresponding area formula. Left-to-right, their areas are ...
<u>Left Trapezoid</u>
A = 1/2(b1 +b2)h
A = 1/2(10 m +11 m)(4 m) = 42 m²
<u>Middle Rectangle</u>
A = LW
A = (13 m)(11 m) = 143 m²
<u>Right Trapezoid</u>
A = 1/2(b1 +b2)h
A = 1/2(11 m +8 m)(10 m) = 95 m²
<u>Wall Area</u>
The total area to be painted is the sum of the above areas:
total area = 42 m² +143 m² +95 m² = 280 m²
The area that needs to be painted is 280 m².
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A tin of paint covers 15 m², so the number of tins needed is ...
(15 m²)t = 280 m²
t = 280/15 = 18 2/3 . . . . . . divide by the coefficient of t
We can only buy whole tins, so we need to buy 19 tins. Their cost will be ...
(£7 /tin)(19 tins) = £133
It will cost £133 to paint the wall.