taitymbowers
Answered

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A store sells bags that contain tubes of lip balm and travel size lotions. A bag that has 2 tubes of lip balm and 3 lotions costs $21. A bag that has 3 tubes of lip balm and 4 lotions costs $29. How much would a bag that has 5 tubes of lip balm and 5 lotions cost?

Sagot :

nifer5126

Answer:

$43

Step-by-step explanation:

b = lip balm

L = lotion

2b + 3L = 21

3b + 4L = 29

3(2b + 3L = 21)

-2(3b + 4L = 29)

6b + 9L = 63

-6b - 8L = -58

L = 5

2b + 3(5) = 21

2b + 15 = 21

2b = 6

b = 3

5b + 5L = ?

5(3) + 5(5)

18 + 25

= 43

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