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Mice21 [21]
3 years ago
13

Haley bought 3 notebooks that each cost the same amount and 1 backpack that cost $36. The items she bought cost a total of $48 b

efore tax was added. What was the cost of each notebook
Mathematics
2 answers:
mel-nik [20]3 years ago
5 0
The answer is 4$ per note book
Marrrta [24]3 years ago
3 0
48-36=12
divide 12 and 3 and you get 4,so each notebook cost $4

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at a party at the middle school over on third avenue next to the bank, $60\%$ of the students are seventh graders. these student
Vaselesa [24]

There are 600 students including the seventh and eighth graders at the party.

This problem uses the concept of percentages to define the conditions that are laid in front of us.

Let the original  number of students be S , and the number of seventh graders be   = 0.60S

We know that percent is used to convey the mathematical term of a fraction multiplied by 100.

Total students  after 20 eighth graders arrive = S + 20

And we have that

Number of seventh graders / total number of students  =  58%

.60S  / [ S + 20 ]  =   .58    we multiply both sides by  S +  20

0.60S  =0 .58 [ S + 20]

.60S  = .58S + 11.6   we subtract  0.58S from  both the sides

0.02S = 11.6  we divide both the sides  by .02

S  = 11/6 / 0.02 =    580

So the total number of students = 580 + 20  = 600 .

Hence there are 600 students at the party at that time.

To learn more about students visit:

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5 0
1 year ago
Need help on both of these please I am really stressed out
Ket [755]

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6 0
2 years ago
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Alonzo Kelly has a checking account with the Central Bank. He earns 0.7% per month. If he maintains a balance of $1000, his chec
Tanya [424]
I'm sorry i can't awenser i 
8 0
3 years ago
Karen is a software saleswoman. Her base salary is $2100, and she makes an additional $50 for every copy of English is Fun she s
Shalnov [3]

Karen has a base salary that is $2100 and does not depends on how many copies she sells.

Additional to the base salary, she gets $50 for each copy she sells, so we can write this additional salary as 50*N, being N the number of copies she sells.

Then, we can write the total pay P as:

P=2100+50N

Then, if N=22, we can calculate the total pay as:

P(22)=2100+50\cdot22=2100+1100=3200

Answer:

The equation relating P and N is P=2100+50N.

The total pay when she sells 22 copies is $3,200.

4 0
1 year ago
Select the correct answer.
mrs_skeptik [129]

Answer:

answer is D

Step-by-step explanation:

6 0
2 years ago
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