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Mrac [35]
3 years ago
8

Mrs. Conley asks her class what kind of party they want to have to celebrate their excellent behavior out of all students in the

class five want an ice cream party seven want a movie party 10 want a costume party and the rest are undecided if 20% want an ice cream party how many students are in the class
Mathematics
1 answer:
Vaselesa [24]3 years ago
7 0
20% = 1/5, so 5*5 = 25 students
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Solve for c.<br><br> 3c − 2 = 7<br><br> c =
son4ous [18]

Answer:

Exact Form:

c  =   − 1 2

Decimal Form:

c  =  − 0.5

Step-by-step explanation:

7 0
3 years ago
2(3 – 4a) + 5(a – 7)
PilotLPTM [1.2K]

Answer:

The answer is -(29+3a).

Step-by-step explanation:

=2(3-4a)+5(a-7)

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= -29-3a

= -(29+3a)

<em>Hope</em><em> </em><em>it helps</em><em>.</em><em>.</em>

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shusha [124]
I hope this helps you




x =4



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3 years ago
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elena55 [62]

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Find the greatest number that will divide 63, 45 and 69 so as to leave the same remainder.
jeka57 [31]

Answer:

6

Step-by-step explanation:

Let n be unknown divisor and a be the same remainder, then

63=q_1\cdot n+a\\ \\45=q_2\cdot n+a\\ \\69=q_3\cdot n+a

Subtract a from all equalities:

63-a=q_1\cdot n\\ \\45-a=q_2\cdot n\\ \\69-a=q_3\cdot n

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The greatest number is 6. When you divide numbers 63, 45, 69 by 6, you'll get remainders 3, 3, 3, respectively.

7 0
3 years ago
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