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4 years ago

Solve the equation (If possible please show work)

Mathematics

2 answers:

AfilCa [17]4 years ago

7 0

<h2><u>Solution:</u></h2>

➨ -2x + 4 = 1 - 4x - 3

➨ -2x + 4 = -4x - 2

➨ -2x + 4x = -2 - 4

➨ 2x = -6

➨ x = -6/2

➨ x = -3

Therefore, <u>the value of x is -3.</u>

olganol [36]4 years ago

6 0

Answer:

You might be interested in

A pie costs $12.55. If it has a diameter of 12 inches what is the cost per square inch of the pie.

uysha [10]

Answer:

The cost per square inch of the pie is $0.111 or 11 cents

Step-by-step explanation:

The shape of a pie is circular.

The area of a circle (pie) = πr²

From the question ,

Diameter = 12 inches

Radius = Diameter/2

Radius = 12 inches/2

Radius = 6 inches.

Hence, the area of the pie = π × 6²

= 113.09733553 square inches

A pie costs $12.55

The cost per square inches of the pie is calculated as:

113.09733553 square inches = $12.55

1 square inch = $x

Cross Multiply

113.09733553x = $12.55

x = $12.55/113.09733553

x = $0.1109663631

Approximately

x = $0.111

Therefore, the cost per square inch of the pie is $0.111 or 11 cents

7 0

3 years ago

Write an equation to represent the following statement 29 is 6 more than K solve for K<br><br> K =

Lerok [7]

Answer:

Step-by-step explanation:

29 is 6 more than K

Let's create an equation

$29 = 6 + k$

Move variable to L.H.S and change its sign

Similarly, move constant to R.H.S and change its sign

$- k = 6 - 29$

Calculate

$- k = - 23$

Change the sign on both sides of the equation

$k = 23$

Hope this helps..

Best regards!!

4 0

3 years ago

A group of friends ordered 3 burgers and 3 medium fries for a total of $17.55. The price of a burger is .75 more than two times

Tatiana [17]

Answer:

Cost price of the burger = $4.15

Step-by-step explanation:

Given data:

3 burgers were ordered

3 medium fries were ordered

Total order cost 17.55

Let the price of the burger be X

Let the price of the medium fries be Y

<em>Equation for the total sale will be </em>3X + 3Y = 17.55 <em>(equation 1)</em>

<em>from this statement 'The price of a burger is .75 more than two times the price of medium fries.' </em>

X - 2Y = 0.75 <em>(equation 2)</em>

<em>There are now two equations and two unknowns, a simultaneous equation is solved to find the cost of the burger.</em>

<em>Many methods can be used to solve these equations but in this case substitution will be used</em>

<em>From equation 2 </em>

X = 0.75 + 2Y<em> (equation 3)</em>

<em>Substituting equation 3 into equation 1</em>

3(0.75 + 2Y) + 3Y = 17.55

2.25 + 6Y + 3Y = 17.55

6Y + 3Y = 17.55-2.25

9Y = 15.3

Y = 1.7

<em>Substituting Y into equation 3</em>

X = 0.75 + 2Y

X = 0.75 + 2(1.7)

X = 0.75 + 3.4

X = 4.15

Therefore the cost price of the burger is $4.15

6 0

3 years ago

Alex drew the triangles shown. Which of the following correctly describes the triangles? 2 triangles are shown. Each triangle ha

evablogger [386]

Answer: D. Both triangles have an obtuse angle

This is because it says "Each triangle has <u>1 obtuse angle</u> and 2 acute angles" in the instructions. An obtuse angle is any angle between 90 and 180 degrees, excluding both endpoints.

4 0

3 years ago

I will give BRAINLIEST to whoever is correct.

maw [93]

Remember, you can do anything to an equation as long as you do it to both sides

we hates fractions
times both sides by 3
(we could have added 1/3b to both sides but I'm lazy)

4b+6=12-b
add b to both sides
5b+6=12
minus 6 both sides
5b=6
divide both sides by 5
$b=\frac{6}{5}$

8 0

4 years ago