If the ratio x:y = 3:5 and y:z = 4:7, find the ratio x:y:...
If the ratio x:y = 3:5 and y:z = 4:7, find the ratio x:y:z
15 : 28 : 84
12 : 20 : 35
3 : 5 : 4
5 : 4 : 7
Correct answer is B
x : y = 3.5, y : z = 4 : 7
x = 3 x 4 = 12
y = 5 x 4 = 20
y = 4 x 5 = 20
z = 7 x 5 = 35
then x : y : z = 12 : 20 : 35
If m = 4, n = 9 and r = 16., evaluate \(\frac{m}{n}\) - 1\(\frac{7}{9}\) + \(\frac{n}{r}\)...
The length of an arc of a circle of radius 3.5 cm is 1\(\frac{19}{36}\) cm. Calculate, correct...
Determine the mean score of the student that took the mathematics test?...
Multiply 2.7 x 10-4 by 6.3 x 106 and leave your answers in standard form...
The derivatives of (2x + 1)(3x + 1) is ...
Factorize completely ac - 2bc - a + 4b2 ...