The 4.7 is a V8, the 4.0 is an I6, the 4.7 would be better suited to heavy duty use
40 to 47 PSI
0.8511
4.175 in a mixed number = 47/40
To find a square root that is not a perfect square, it will be necessary to find an approximate answer by using the procedure given in the example below: Since 40 is between 36 and 49, then the square root of 40 is between 6 ( √36), and 7 (√49). 36 < 40 < 47 √36 < √40 < √47 6 < √40 < 7 Since 40 is almost less than halfway between 36 and 47, √40 is almost less than halfway between √36 and √47. To check, multiply 6.32 x 6.32 = 39.9424 or 40. For a better approximation use the calculator.
Expressed as a mixed number in its simplest form, 47/40 is equal to 1 7/40 or one and seven fortieths.
40 47
47
1 and 7/47
40: 2, 5 44: 2, 11 45: 3, 5 47: 47
With the key on pump pressure should be 40 - 47 psi. This is with the engine not running.
.4(47) = 188/10 = 18.8.
40 x 47 = 1880 square miles.