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Semmy [17]
3 years ago
10

If x + 4 = 12, what is the value of x?

Mathematics
2 answers:
cluponka [151]3 years ago
5 0

Answer:

8

Step-by-step explanation:

To find the answer to these problems you can work backwards

12-4=8

Citrus2011 [14]3 years ago
4 0
X=8. Subtract 4 from 12
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Answer:

c

Step-by-step explanation:

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2 years ago
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 m∠A = 42 and m∠C = 57. Find m∠B.<br>A. 81<br><br> B. 99<br><br> C. 132<br><br> D. 147
faltersainse [42]
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because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
5 0
3 years ago
Write 9x - 8 as a verbal expression <br><br> Please the fast as possible!
Natalka [10]

Answer:

8 subtracted from the product of 9 and x

Hope this helps!

4 0
2 years ago
The donaldson's swimming pool measures 15 metters long 8 meters wide and 3 meters deep how many cubic meters if water will the p
Svetradugi [14.3K]
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7 0
3 years ago
Your class raised money by selling hot dogs and hamburgers. Hot dogs were sold for $.50 (fifty cents), and hamburgers were sold
LenKa [72]

Answer:

Number of hot dogs sold =  56

Number of  hamburgers sold = 52

Step-by-step explanation:

Let

Number of hot dogs sold = x

Number of  hamburgers sold = y

We can make equation from given equations:

0.50x+1y=80 (Hot dogs were sold for $.50 (fifty cents), and hamburgers were sold for $1 (one dollar). The total money raised by your class was $80. )

x+y=108  (Together you sold 108 hot dogs and hamburgers.)

Now we cam solve these system of equations to find value of x and y

0.50x+y=80--eq(1)\\x+y=108--eq(2)

Subtract both equations to get value of x:

0.50x+y=80\\x\:\:\:\:\:\:\:\: + y=108\\-\:\:\:\:\:\:\:\: -\:\:\:\:\:\: -\\---------\\-0.5x=-28\\x=\frac{-28}{-0.5}\\x=56

We get value of x = 56

Now putting value of x in equation 2 to find value of y

x+y=108\\56+y=108\\y=108-56\\y=52

So, we get y = 52

Therefore,

Number of hot dogs sold = x = 56

Number of  hamburgers sold = y = 52

6 0
2 years ago
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