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dimaraw [331]
3 years ago
9

Hello anyone to help ​

Mathematics
2 answers:
Murljashka [212]3 years ago
4 0

Answer: You bought 7 books and you also bought 4 magazines

Explanation:

x = # of books purchased

y = # of magazines purchased

System of equations:

8x + 5y = 76
x + y = 11

Let’s use elimination in this case, but substitution can also work.

8x + 5y = 76
Multiply the (x + y = 11) by -8

We get:

8x + 5y = 76
-8x - 8y = -88
The xs cancel.
Add like terms.
-3y = -12
Divide by -3 on both sides
y = 4

Now plug in 4 into the (x + y = 11) equation to get x.

x + (4) = 11
Subtract 4 on both sides
x = 7
lora16 [44]3 years ago
4 0

Answer:

b+m = 11  

8b + 5m = 76  

 b = 11-m  

substitute  

  8(11-m)+5m = 76  

   88 - 8m + 5m = 76  

    12 = 3m  

   4 = m    7 = b  

check  

  4*5 + 7*8 ?=? 76  

  20 + 56 = 76    the answer is correct.

Step-by-step explanation:

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Faris's gas tank is 1/10 full. After he buys 24 liters of gas, it is 2/5 full. How many liters can Faris's tank hold?
Arisa [49]

Answer:

80 liters

Step-by-step explanation:

24 liters is the difference between 2/5 full and 1/5 full.

Let x = number of liters in full tank.

2/5 x - 1/10 x = 24

4/10 x - 1/10 x = 24

3/10 x = 24

1/10 x = 8

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Answer: 80 liters

5 0
2 years ago
6. If you spun the spinner below, what are the odds that you will spin an
denis23 [38]

If you mean that is a 4 digit number then here is your answer.

Answer:

1:1

Step-by-step explanation:

So there is 1000 to 9999. That includes 9999-999= 9000 numbers. Since each number it is either a odd number or an even number, we can say that it is 1:1 There would be 4500 odd and 4500 even numbers. Every even number is followed by an odd number. for example: 1000-1001 1002-1003 1004-1005

so on so you would get to the point that you get to 9998-9999

Hope it helped you!

8 0
3 years ago
What two numbers multiply to be negative 35 and add up to 2
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Seven and five because seven times five is thirty five and seven minus five is two
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vlada-n [284]

Answer:

I think it's 20 I think I'm not sure but try to solve it

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