Answer:
Explanation:
Givens
58 grams of A
19 grams of B
19 grams of C
15 grams of D
10 grams of E
Total 58 + 19 + 19 + 15 + 10 = 121
Solution
58/121 = A/4 Cross multiply
4 * 58 = 121A Combine
232 = 121 A Divide by 121
232/121 = 121x/121
A = 1.92
The others are done with same way
19/121 = x / 4
19*4 = 121 B
76 = 121 B
76/121 = 121/121 B
B = .628
C is the same as be
C = 0.628
15/121 = C / 4
60 = 121 * C
60/121 = D
D = .496
10/121 = E / 4
40 * 4 = 121 * E
40 = 121 * E
E = 40/121
E = .331
Total
A + B + C + D + E
Total = l.92+0.628 + 0.628 + 0.496 + 0.331
Total = 4.003 which is close enough to 4.