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svetlana [45]
3 years ago
14

Paige asked 30 random students in her school if they use the internet to help with homework. Of these students, 18 students said

they do use the internet to help with homework. Based on the results of this survey, how many of the 480 total students in Paige’s school could she predict use the internet to help with homework?
A:144
B:230
C:288
D:320
Mathematics
1 answer:
Anna35 [415]3 years ago
5 0

Answer:

288

Step-by-step explanation:

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In certain county, the number of charter schools is 4 less than twice the numbervof alternative schools. We know that there are
Vitek1552 [10]
1. Let's call the number of carter school: "x" and "y" the number of alternative school.  Then, you have that:

 - T<span>he number of charter schools is 4 less than twice the number of alternative schools.
</span> - T<span>here are 48 charter schools in the country.

 2. So, you have:

 x=2y-4  (i)

 x=48  (ii)

 3. Then, when you substitute x=48 into the equation (i), you obtain:
</span>
 x=2y-4
<span> 48=2y-4

 4. Now, you must clear "y, as below:

 48+4=2y
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6 0
3 years ago
What is the expression l x w represent
zzz [600]
Im pretty sure it is length times width :)

4 0
2 years ago
Erin has a checking account. Her opening balance on 2/5 was $100. The bank charges a 25¢ fee for each debit card transaction and
tia_tia [17]
The answer is 56.45 good luck!
6 0
3 years ago
Simplify:
liubo4ka [24]

Answer:

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447÷513=0.8713450292

Step-by-step explanation:

hope it will help!

8 0
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Membership at the Universal Fitness Gym offers yearly memberships for $275. Yoga classes cost an additional $5 per class. Write
Dmitry [639]

total cost = membership +cost per class* number of classes

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Choice C

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3 years ago
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