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Luden [163]
3 years ago
12

Solve by writing an equation.

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0

Answer:

$115 - $48 = $67    Alberto has $67

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I need help plss. I will give you a lot of points I promise
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. A survey of 30 students is taken. 11 students say that mathematics is their favorite subject. Based on this survey, how many s
Sveta_85 [38]
Ok, so based on a survey - you know that out of 30 students, 11 said that their favourite subject is mathematics. :-)

This means that:

11/30 of these students think mathematics if their favourite subject.

Now, in order to answer your question, we are going to have to change the denominator of the fraction above to 1000. Whatever we do to the denominator of this fraction, we must do to the numerator of this fraction.

Example:

\frac { 11 }{ 30 } \times \frac { \frac { 1000 }{ 30 }  }{ \frac { 1000 }{ 30 }  } \\ \\ =\frac { \frac { 11000 }{ 30 }  }{ 1000 } \\ \\ =\frac { 366.\dot { 6 }  }{ 1000 }

This means that rounded to the nearest ten, theoretically speaking, 370 students out of 1000 would say that mathematics is their favourite subject.
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3 years ago
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If you have 12 customers in a lawn care business, what is the minimum number of times you need to mow per customer each month to
Trava [24]
I believe the answer would be D. Because, 10*12= 120 and 400/120= 3.33 
Since you are talking about money, you would round up. 

Meaning that the answer should be D.
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3 years ago
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Vinvika [58]

Answer:

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Answer:

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Step-by-step explanation:

|-7-8| = |-15| = 15##

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