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DerKrebs [107]
3 years ago
7

Explain why the equation 5x-7=7 has only one solution? NEED ASAP

Mathematics
1 answer:
kotykmax [81]3 years ago
8 0
The answer for this is 2.8
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Divide.<br><br> −4 1/3÷−2 3/5<br><br> 123<br><br> 145<br><br> 215<br><br> 235
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Answer:

1.66666666667

Step-by-step explanation:

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3 years ago
What is the solved equation for x+4=-14?
ira [324]

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-18

Step-by-step explanation:

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12. An equation is shown. 8 1/2 - 3 1/? = 5 3/12<br>What is the value of the missing number?​
weeeeeb [17]

Answer:

Step-by-step explanation:

Alright, lets get started.

8\frac{1}{2}-3\frac{1}{?}=5\frac{3}{12}

These are mixed number given.

Suppose the complete mixed number of second place is x.

Converting mixed numbers into fractions.

\frac{17}{2}-x=\frac{63}{12}

Adding x in both sides

\frac{17}{2}=x+\frac{63}{12}

x=\frac{17}{2}-\frac{63}{12}

Making common denominator

x=\frac{102}{12}-\frac{63}{12}

x=\frac{39}{12}

x=\frac{13}{4}

In mixed number form:

x=3\frac{1}{4}

So comparing with given equation, the '?' sign will be equal to 4.

Hence the answer is 4    :  Answer

Hope it will help :)

4 0
3 years ago
Show all your work to receive full credit for this problem. Solve the system of equations using the elimination method. 2a + 3b
Sindrei [870]

Given equations are;<span>
2a + 3b = -1   ..................equation 1
3a + 5b = -2  ....................equation 2</span>

Now multiply equation 1 with (-3)

The equation will be;

-6a -9b = 3 …………………..equation 3

Now multiply equation 2 with (2)

The equation will be;

6a + 10b = -4 ……………..equation 4

Now add equation 3 and equation 4

-6a – 9b = 3

<span>6a  + 10b = -4</span>

<span>------------------------------</span>

0a + b = -1

b = -1

Now put the value of b in equation 1

2a + 3(-1) = -1

2a -3 = -1

2a = -1+3

2a = 2

a=1

Thus the solution is (a,b) = (1,-1)

<span>
</span>

8 0
3 years ago
What is 8+9=z<br> z=?<br> please help
Masteriza [31]

Answer:

17

Step-by-step explanation:

fug hr rn htghttthhuyyyyyyyyygggyt

6 0
2 years ago
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