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docker41 [41]
3 years ago
8

Amy ordered 6 meals from Food Hub that cost $13.95 each, and she was charged a $10.50 delivery fee.

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

Answer:

Amy had to pay in total 94.20$ for the meals with delivery

Step-by-step explanation:

6 total meals

6 x 13.95$ = 83.70$ The money payed for the food without the delivery

83.70 + 10.50 = 94.20$ Meals + delivery

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Answer:

50 dollars

Step-by-step explanation:

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A florist is creating 10 centerpieces. Roses cost $2.50 each, lilies cost $4 each, and irises cost $2 each. A customer plans on
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Answer:

8 Roses; 1 lilie ; 3 irises

Step-by-step explanation:

Let the number of roses be 'a' , number lilies be 'b' and number of irises be 'c'

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a = 2(b+c)

a-2b-2c=0 ............................... (3)

a) System of equation are equations (1) , (2) & (3).

Writing a matrix equation

\left[\begin{array}{ccc}2.5a&4b&2c\\a&b&c\\a&-2b&-2c\end{array}\right]  = \left[\begin{array}{ccc}30\\12\\0\end{array}\right]

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substituting for 'a' in equation (1) and (2),

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⇒ 5b + 5c + 4b + 2c = 30

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⇒ b = 4 - c ..............................(5)

Substituting (5) in (4)

9 (4 - c) + 7c = 30

36 - 9c+7c =30

36-30 = 2c

c = 3

b = 4-3 = 1

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