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Airida [17]
3 years ago
15

Complete the solution of the equation. find the value of y when x equals 1. 9x +7y= -12​

Mathematics
1 answer:
Taya2010 [7]3 years ago
6 0

Answer:

y=-3

Step-by-step explanation:

Given Equation:  

                            9x +7y=-12\\             y=?       at    x= 1

Putting the given value of 'x' in the equation:

                            9(1) +7y=-12\\\\9+7y=-12\\\\7y=-12-9\\\\7y=-21\\\\y=-\frac{21}{7} \\y=-3

At x=1, the value of y is y=-3

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Solve for q.<br> a=qb+r<br> What is q equal to?<br> q=a−r−b<br> q=a−r/b<br> q=a/b −r<br> q=a/rb
Mademuasel [1]

The given equation is a=qb+r

We need to solve the equation for q.

<u>Value of q:</u>

The value of q can be determined by solving the equation a=qb+r for q.

Thus, subtracting both sides of the equation by r, we get;

a-r=qb

Now, dividing both sides of the equation by b, we have;

\frac{a-r}{b}=\frac{qb}{b}

Simplifying the terms, we get;

\frac{a-r}{b}=q

Therefore, the value of q is q=\frac{a-r}{b}

Hence, Option B is the correct answer.

7 0
3 years ago
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nasty-shy [4]

Answer:

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7 0
3 years ago
84.87 is 115% of what
elena-s [515]
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Then you can check your work by multiplying 73.8 by 1.15 and you get 84.87
6 0
3 years ago
Multiplier of 5/7=30/42
tankabanditka [31]

Answer:

6

Step-by-step explanation:

5*6=30

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5 0
3 years ago
Read 2 more answers
Explain why any of the four operations (+-x / )placed between the two terms 5 and-3/(radical sign) 8 will result in an irrationa
strojnjashka [21]

Answer:

5 + (-3/2√2) = irrational number

5 - (-3/2√2) = irrational number since we have  √2

Step by step explanation

Here the given two numbers are 5 and -3/√8.

Here we can rewrite √8 = √2√4

Which is 2√2.

So √8 = 2√2, where √2 is an irrational number.

-3/√8 = -3 / 2√2 = =3/ 2√2 is an irrational number.

When you add, subtract, multiply and divide a whole number (5) with an irrational number (-3/2√2) is always an irrational number.

Therefore, when you do the operations with 5 and -2/2√2 always result in irrational number.

Hope you will understand the concept.

Thank you.

5 0
3 years ago
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