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Helen [10]
3 years ago
7

Samantha loves to download new music. She originally had 52 songs but plans to purchase 2 new songs each week. She wants to know

how many songs she will have after 93 weeks. Which equation should she use?
a93 = 93 + 2(52 − 1)
a93 = 93 + 2(52 + 1)
a93 = 52 + 2(93 + 1)
a93 = 52 + 2(93 − 1)

Hint: It's either A, B, C, or D
Mathematics
2 answers:
Nat2105 [25]3 years ago
6 0
a_1=52\\
d=2\\
n=93\\\\
a_n=a_1+(n-1)\cdot d\\\\
a_{93}=52+(93-1)\cdot2=52+2(93-1)

natta225 [31]3 years ago
5 0
They want to construct this in the form of an arithmetic sequence which as the form:

a(n)=a+d(n-1), where a=initial value, d=common difference.

In this case a=52 and d=2, so our formula is:

a(n)=52+2(n-1)  and if we are looking for the 93 term we have

a(93)=52+2(93-1)
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c

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What is the answer to 18.7 and 18.6 rounding to the nearest tenth
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8 0
3 years ago
If a>b, c<b, and d>a, then which of the following is the correct relationship?
tatuchka [14]

x > y is the same like y < x

If a > b and b > c then a > b > c

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7 0
3 years ago
3 - x/2 = 6 (Solve each equation) Check your answer
Yanka [14]
Answer to question
3-x/2=6
Subtract 3 from both sides
-x/2=3
Multiply 3 by -2
Final Answer: x=-6

Work check
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6 0
3 years ago
81 is 37.5% of what number?
laila [671]

Hi,

81 is 37.5% of 216.

"1. We assume, that the number 37.5 is 100% - because it's the output value of the task.  

2. We assume, that x is the value we are looking for.  

3. If 100% equals 37.5, so we can write it down as 100%=37.5.  

4. We know, that x% equals 81 of the output value, so we can write it down as x%=81.  

5. Now we have two simple equations:

1) 100%=37.5

2) x%=81

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=37.5/81

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 81 is what percent of 37.5

100%/x%=37.5/81

(100/x)*x=(37.5/81)*x       - we multiply both sides of the equation by x

100=0.46296296296296*x       - we divide both sides of the equation by (0.46296296296296) to get x

100/0.46296296296296=x  

216=x  

x=216                          "

Have a great day!

3 0
2 years ago
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