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spin [16.1K]
2 years ago
7

On a field trip to the zoo, 21 students voted to have sandwiches for lunch. This represents 7/8 of the class. How many students

are in the class?
Mathematics
1 answer:
Varvara68 [4.7K]2 years ago
8 0

Answer:

24

Step-by-step explanation:

DO 21 divided by 7/8

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Building a is 271 meters taller than building
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Let a and b represent the heights of the corresponding buildings (in meters).

... a = b +271 . . . . . . . a is 271 meters taller than b

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Use the expression for a in the first equation to substitute for a in the second.

... 2b - (b+271) = 211

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4) Arnold ate breakfast at a restaurant. His total came to $76.75. There is an 8% sales tax and 15% tip. What is Arnold's total
lisov135 [29]

Answer:

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Step-by-step explanation:

Given:

Total came to $76.75. There is an 8% sales tax and 15% tip.

Now, to find the total cost.

<em>8% sales tax is there so we calculate the amount after adding sales tax:</em>

$76.75 + 8% of $76.75

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76.75+0.08\times 76.75

76.75+6.14

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The cost after sales tax is $82.89.

Now, <em>the cost after 15% tip:</em>

$82.89 + 15% of $82.89

82.89+\frac{15}{100}\times 82.89

82.89+0.15\times 82.89

82.89+12.43

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The cost after the tip is $95.32.

Therefore, the total cost is $95.32.

8 0
3 years ago
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