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kykrilka [37]
3 years ago
8

What’s the answer for x??

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

3x+85= 21

or, 3x= 85- 21

or, 3x= 64

or,x= 64/3

;. x= 21.3

Step-by-step explanation:

the value of x is 21.3

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At a particular restaurant, each pizza roll has 60 calories and each mini hotdog has 70 calories. A combination meal with pizza
PolarNik [594]

Answer:

There are 9 pizza rolls and 12 mini hotdogs in the meal.

Step-by-step explanation:

We are given the following in the question.

Let x be the number of pizza rolls sold and y be the number of mini hotdogs in the combination meal.

Total number of items in combination meal = 21

Thus, we can write the equation:

x + y = 21

Calorie in a pizza roll = 60

Calorie in a mini hotdog = 70

Total calories = 1380

Thus, we can write the equation:

60x + 70y = 1380

Solving the two equations, we get,

60x + 70y - (60x+60y) = 1380 - 60(21) \\10y = 120\\\Rightarrow y = 12\\\Rightarrow x = 21-12 = 9

Thus, there are 9 pizza rolls and 12 mini hotdogs in the meal.

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vampirchik [111]

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3 years ago
What logically could have gone wrong?
dimaraw [331]
brainly.com/question/6753925
3 0
3 years ago
Can someone please help me with my last question? <br><br> answer choices are -165, -120, 165, 120
Ugo [173]

Answer:

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Step-by-step explanation:

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7 0
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How far does a car travel in .75 hrs if it is moving at a constant speed of 45 mi/hr?
Nadusha1986 [10]

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33.75 miles

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