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8_murik_8 [283]
2 years ago
10

The manager at a smoothie stand keeps track of the number of protein smoothies and berry smoothies sold each day and the total m

oney received. On Wednesday, a total of 100 smoothies were sold, and the money collected was $836 . If protein smoothies are sold for $10 and berry smoothies are sold for $6 , how many protein smoothies and berry smoothies were sold?
Mathematics
1 answer:
rodikova [14]2 years ago
4 0
Given:
Protein smoothie costs $10
Berry smoothie costs $6
Total smoothies sold  = 100
Total money collected = $836

Let
x = number of protein smoothies sold
y = number of berry smoothies sold

Then
x + y = 100           (1)
10x + 6y = 836     (2)

From (1), obtain
y = 100 - x            (3)

Substitute (3) into (2).
10x + 6(100 - x) = 836
4x + 600 = 836
4x = 236
x = 59
y = 100 - x = 41

Answer:
59 protein smoothies and 41  berry smoothies were sold.
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