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Vlad1618 [11]
2 years ago
11

Please help this is my last question

Mathematics
1 answer:
Vanyuwa [196]2 years ago
8 0

Answer:

Step-by-step explanation:

The area must be 232 in^2

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1. A notebook costs $5 more than a folder. Greg purchased 3 notebooks and 2 folders and paid a total cost $30. What is the cost
stiv31 [10]
Answer
Notebook each =$4
Folder each = $9

First we write out what we know
Notebook = n
Folder = f
It says a notebook is +5 than a folder so
f = n +5
It says he bought 3 notebooks and 2 folders for $30
3n + 2f = 30

Because we know from the first equation
f=n+5, we can substitute that into the second equation for f

3n + 2(n+5) = 30
3n + 2n +10 =30. Now Combine like terms
5n +10 =30. Now isolate n by subtracting 10 from both sides
5n = 20. Now isolate n by dividing both sides by 5
n = 4

Now we do the same thing to find f
We substitute the value of n (4) into the equation 3n + 2f =30
3(4) +2f =30
12 +2f =30. Now isolate f by subtracting 12 from both sides
2f = 18. Now isolate f by dividing both sides by 2
f = 9


We check our work by inserting the n and f values we found into one of the equations
n + 5 = f
4 + 5 = 9
9 = 9. It worked it equals so it’s correct
8 0
1 year ago
Here are my points idc anymore
RSB [31]

Answer:

Thanks for the free points

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Can someone help me pls ?
r-ruslan [8.4K]

Answer:

58.3%

Step-by-step explanation:

Add up the numbers that are only in one circle

18+7+10 = 35

Take this over 60

35/60=.58333333

Change to percent form to one decimal place

58.3%

3 0
3 years ago
Select the correct answer.<br> Given the formula below, solve for x.<br> y - y1 = m(x - x1)
mario62 [17]
C would be the right answer just done the test
7 0
3 years ago
There are 25 pupils in a class. The table shows information about their test results in maths and English. How many pupils had a
Nadusha1986 [10]

Answer:

12

Step-by-step explanation:

2+2+1+1+6=12

  • 2 + 2 + 1 + 1 + 6 = 12
4 0
2 years ago
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