Answer : 140
140 times 40% = 65 so the answer is 140
93600 times because 65*60*24 gives the answer. Well, this is only true if your heart rate stays the same for the whole day.
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:x=26
Step-by-step explanation:
ANSWER
Find out the how many pounds of nickel have to be used to create alloy that contains 4.9 lb of zinc.
To proof
As given
An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.
the total part of the alloy are 18.
assuming one part be x.
thus
nickel part = 2x
zinc part = 7x
copper part = 9x
alloy that contains 4.9 lb of zinc.
than the equation becomes
7x = 4.9

x = 0.7
Therefore
nickel part = 2x
= 2× 0.7
= 1.4 lb
1.4 lb of nickel have to be used to create alloy that contains 4.9 lb of zinc.
Hence proved