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vredina [299]
3 years ago
7

Which number expression represents 1/2 the sum of 7 and 5 please help

Mathematics
1 answer:
Bess [88]3 years ago
8 0

Answer: = ( 7+5 ) x 1/2

Step-by-step explanation:

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3 years ago
What is the value of y?
NNADVOKAT [17]

Answer:

y = 40

Step-by-step explanation:

Lets make an equation to represent the sum of the angles:

We know that the sum of angles of triangles equals 180 degrees. So based on this knowledge, the equation is :

2y + y + 10 + 50 = 180


Now we simplify:

2y + y = 3y


10 + 50 = 60


So our new equation is 3y + 60 = 180

Now all we have to do is simplify:

3y + 60 = 180

3y + 60 -60 = 180 - 60

3y = 120

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y = 40


So the answer is 40 hope this helped


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3 years ago
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Answer:

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Step-by-step explanation:

3 0
2 years ago
Emi made a 90 on her math test. There was 60 problems on her test. How many did she miss?
viva [34]
If she made a 90 that means 90 percent aka .90 so multiply that by 60 to get 54 right aka 6 wrong which you could find either by subtracting 54 from 60 or solving for 10 percent bc she got that much wrong and multiply .10x60=6 wrong
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3 years ago
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