Let n be old painters time. Then the new painters are 2n. So:
1/n+1/2n=1/6
2+1=2n/6
2n=18
n=9
The old painters take 9 hours; the new ones take 18
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Answer:
C. 60° and 80°
Step-by-step explanation:
Sum of triangle = 180°
Therefore,
8x + 4 + 6x - 2 + 10x + 10 = 180
Add like terms
8x + 6x + 10x + 4 - 2 + 10 = 180
24x + 12 = 180
24x = 180 - 12
24x = 168
x = 168/24
x = 7
Find each measure of the angles by substitute x = 7 into each expression
8x + 4 = 8(7) + 4 = 60°
6x - 2 = 6(7) - 2 = 40°
10x + 10 = 10(7) + 10 = 80°
The answer is 60° and 80°
Answer:
hopefully tht example will help u
Step-by-step explanation:
To change 0.0002 to scientific notation, move the decimal to the right 4 places so that you get 2. The exponent on the base 10 will be -4 because the decimal was moved to the right 4 places. So 0.0002 in scientific notation is 2×10−4.
Answer:
2x²ⁿ₊3x²ⁿ⁻¹)(x¹⁻²ⁿ₋3x²⁻²ⁿ)
Step-by-step explanation:
2x²ⁿ₊3x²ⁿ⁻¹)(x¹⁻²ⁿ₋3x²⁻²ⁿ)
Answer:
1017.36m
Step-by-step explanation:
The formular for finding the total surface area of a sphere is 4πr²
Where π is 3.14 and from the question r is 9m
4X3.14X9²
4X3.14X81
1017.36m
