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aliya0001 [1]
3 years ago
9

Solve 15/4 - 7x =9 (someone please answer )​

Mathematics
2 answers:
drek231 [11]3 years ago
8 0
Here is some work I just submitted for school the answer is -3/4

patriot [66]3 years ago
7 0

Answer:

<h2>x = -3</h2>

Step-by-step explanation:

<u>15 - 7x  </u>= 9

   4

-7x = 9(4) - 15

x = 21/-7

x = -3

proof:

<u>15 - 7(-3)  </u>= 9

   4

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A window is 21 inches wide, and its perimeter is 112 inches. What is the length of the window?
Kazeer [188]

Answer:

The length of the window is 35 inches.  

Step-by-step explanation:

Perimeter of an object can be found using the general formula:  P = 2W + 2L, where P = perimeter, W = width and L= length.  Since both the width and perimeter of the window are given, we can plug these values into the formula to solve for the missing variable 'L':  112 = 2(21) + 2L, or 112 = 42 + 2L.  We can then use inverse (opposite) operations to isolate the variable and solve.  Whatever we do to one side of the equation, we do to the other.  We will start by subtracting 42 from each side:  112 - 42 = 42 - 42 + 2L or 70 = 2L.  Next, we divide both sides by 2 to solve for L:  70/2 = 2L/2 or L = 35.  So, the final length of the window is 35 inches.  

8 0
3 years ago
The number of subsets that can be created from the set {1, 2, 3} is:
kkurt [141]

Answer:3

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Please  help ill mark brainliest!!
kompoz [17]
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7 0
3 years ago
Describe the relationship between n and 4 that will make the value of the expression 7xn4greater than7
valina [46]

Answer:

As per the statement: the value of the expression 7 x n/4 greater than 7.

To describe the relationship between n and 4.

"greater than" symbol is represented by '>'

The value of expression 7 \times \frac{n}{4} grater than 7 is;

7(\frac{n}{4}) > 7

Divide by 7 both sides we get;

\frac{n}{4} > 1

Multiply both sides of an equation by 4 we get;

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8 0
3 years ago
Write the equation of the line if fully simplified slope in intercept form
viva [34]

Answer:

As we have seen before, you can write the equation of any line in the form of y = mx + b . This is the so-called slope intercept form, because it gives you two important pieces of information: the slope m and the y-intercept b of the line. You can use these values for linear interpolation later.

Step-by-step explanation:

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2 years ago
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