Answer: 
Step-by-step explanation:
Given
Rate of painting 50¢ per square foot
Cost of paint is $100
If the total bill is $475
We can write,
![\Rightarrow 475=100+0.5\times x\quad [x=\text{area in square foot}]\\\Rightarrow 375=0.5x\\\Rightarrow x=750\ ft^2](https://tex.z-dn.net/?f=%5CRightarrow%20475%3D100%2B0.5%5Ctimes%20x%5Cquad%20%5Bx%3D%5Ctext%7Barea%20in%20square%20foot%7D%5D%5C%5C%5CRightarrow%20375%3D0.5x%5C%5C%5CRightarrow%20x%3D750%5C%20ft%5E2)
Thus, must be painted.
Answer:
4^5/4^2
Step-by-step explanation:
We know 1/a^b = a^-b
a^b/ a^c = a^(b-c)
1/4^3 = 4^-3
4^2/4^5 = 4^(2-5) = = 4^-3
4^5/4^2 = 4^(5-2) = 4^3
4^-3
Answer:
If a=A and B=b then the answer is C.-5
Answer:
2.15 FT
Step-by-step explanation:
David's score on his fifth test would be an 87. If you add up all the scores from his first to his fourth test, it would 363. However, since there are five tests, in order to get a 90 percent, the sum of all five test scores would be 450. 450 - 363 = 87.
