The number of “exchanges” for breakfast for each of the four food groups, respectively, are 2, 1, 2, and 1; for lunch, 3, 2, 2, and 1; and for dinner, 4, 3, 2, and 1. Write a 3*4 matrix using this information. (b) The amounts of fat, carbohydrates, and protein (in appro-priate units) per exchange in each food group, respectively, are as follows. Fat: 5, 0, 0, 10 Carbohydrates: 0, 10, 15, 12 Protein: 7, 1, 2, 8 Use this information to write a 4*3 matrix. (c) There are 8 calories per exchange of fat, 4 calories per ex-change of carbohydrates, and 5 calories per exchange of protein. Summarize these data in a 3*1 matrix.
A dietician prepares a diet specifying the amounts
a patient should eat of four basic food groups: group I, meats;
group II, fruits and vegetables; group III, breads and starches;
group IV, milk products. Amounts are given in “exchanges”
that represent 1 oz (meat), 1/2 cup (fruits and vegetables),
1 slice (bread), 8 oz (milk), or other suitable measurements.
(a) The number of “exchanges” for breakfast for each of the
four food groups, respectively, are 2, 1, 2, and 1; for lunch,
3, 2, 2, and 1; and for dinner, 4, 3, 2, and 1. Write a 3*4
matrix using this information.
(b) The amounts of fat, carbohydrates, and protein (in appro-priate units) per exchange in each food group, respectively,
are as follows.
Fat: 5, 0, 0, 10
Carbohydrates: 0, 10, 15, 12
Protein: 7, 1, 2, 8
Use this information to write a 4*3 matrix.
(c) There are 8 calories per exchange of fat, 4 calories per ex-change of carbohydrates, and 5 calories per exchange of
protein. Summarize these data in a 3*1 matrix.
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