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3 years ago

Solve for x: (x+4) = 7.(1 point) 2 Ox=3 Ox=5 Ox=6 O x = 10

Mathematics

1 answer:

MArishka [77]3 years ago

5 0

Answer:

Step-by-step explanation:

So we have the equation:

$x+4=7$

To solve for x, subtract 4 from both sides:

$(x+4)-4=(7)-4$

The left side cancels. Subtract on the right:

$x=3$

So, the value of x is 3.

And our answer is A.

And we're done!

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A picture is 6 inches longer than it is wide and has an area of 167

Scorpion4ik [409]

Answer:

A) L = W + 6

B) L * W = 167 OR L = 167 / W

Substituting B) into A)

167 / W = W + 6

Multiplying both sides by "W" we get

167 = W^2 + 6W

W^2 + 6W -167

Solving by the quadratic formula

Width = 10.266

Length = 16.266

Step-by-step explanation:

5 0

3 years ago

PLEASE ANSWERRRRRRRRRR

mash [69]

Answer: OPTION B.

Step-by-step explanation:

Given the following System of equations:

$\left \{ {{3x-5y=19} \atop {x+y=1}} \right.$

You can use the Elimination Method to solve it. The steps are:

1. You can mutliply the second equation by -3.

2. Then you must add the equations.

3. Solve for the variable "y".

Then:

$\left \{ {{3x-5y=19} \atop {-3x-3y=-3}} \right.\\.....................\\-8y=16\\\\y=\frac{16}{-8}\\\\y=-2$

4. Now that you know the value of the variable "y", you must substitute it into any original equation.

5. The final step is to solve for "x" in order to find its value.

Then:

$x+(-2)=1\\\\x=1+2\\\\x=3$

Therefore, the solution is:

$(3,-2)$

8 0

3 years ago

A bag contains 10 counters

juin [17]

44%

6/10 = 3/5

3/5 x 1/10 = 3/50

3/50 x 1/10 = 3/500

3/500 / 2/6 = 44/100

7 0

2 years ago

What is the slope of the line y = 5x? Just write the number for your answer.

vitfil [10]

Answer:

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

m - slope
b - y-intercept

Step-by-step explanation:

Step 1: Define

y = 5x

Step 2: Break Function

Identify Parts

Slope m = 5

y-intercept b = 0

5 0

2 years ago

(Use the Distributive Property to find an equivalent expression) 2(3x-7y) = ?

IRINA_888 [86]

Answer:

(7y-3x)2

Step-by-step explanation:

It's the same thing but backwards

I hope this helps

6 0

2 years ago