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nexus9112 [7]
3 years ago
8

Which table best represents the steps to solve the equation 8 + x over 3 = 4? (5 points) Select one: a. Step Justification Step

1: x over 3 = 4 + 8 The same number +8 can be added to both sides of the equation Step 2: x over 3 = 12 Adding 8 and 4 on the right hand side Step 3: x = 12 ⋅ 3 The same number 3 can be multiplied on both sides of the equation Step 4: x = 36 Multiplying 12 and 3 on the right hand side b. Step Justification Step 1 x over 3 = 4 − 8 The same number −8 can be added to both sides of the equation Step 2: x over 3 = −4 Adding −8 and 4 on the right hand side Step 3: x = −4 ⋅ 3 The same number 3 can be multiplied on both sides of the equation Step 4: x = −12 Multiplying −4 and 3 on the right hand side c. Step Justification Step 1: x over 3 = 4 − 8 The same number − 8 can be added to both sides of the equation Step 2: x over 3 = −4 Adding 4 and −8 on the right hand side Step 3: x = − 4 − 3 The same number 3 can be subtracted from both sides of the equation Step 4: x = −7 Simplifying −4 −3 d. Step Justification Step 1: x over 3 = 4 − 8 The same number − 8 can be added to both sides of the equation Step 2: x over 3 = −4 Adding 4 and −8 on the right hand side Step 3: x = − 4 − 3 The same number 3 can be subtracted from both sides of the equation Step 4: x = −7 Simplifying −4 −3
Mathematics
1 answer:
mixas84 [53]3 years ago
7 0
The answer is -1/8 because u  multiply  both numerators by each other and both deminators by eachother and you get 15\120 then  u  simplify you do 15 divided by 15 and get 1and then 120 divided by  15 and get 8 and u get 1\8 as your answer
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8
Kryger [21]

Answer:

Worth = \$284258.1

Step-by-step explanation:

Given

Dimension: 7in\ * 3in\ * 1in

Value = \$1214/oz ---- value of Gold

Required

The worth of 1 gold bar

First, calculate the volume (n) of the gold bar

n = 7in * 3in * 1in

n = 21in^3

Next, calculate the weight of the gold bar using:

w = 11.15n

w = 11.15 * 21

w = 234.15oz

Multiply the value of Gold by the weight of the gold bar to get the worth of the gold bar.

Worth =Value * w

This gives:

Worth = \$1214/oz * 234.15oz

Worth = \$1214 * 234.15

Worth = \$284258.1

8 0
3 years ago
The sum of three numbers is
Tanya [424]
185 plus the second number which is 196 plus 90 is 471
6 0
3 years ago
John Hughes earns a salary of $2800 a month and a commission of 7.5% on sales over $4000 this month his sales were $21400 find t
Lostsunrise [7]

Answer:

John Hughes won in the month a total of $4405

Step-by-step explanation:

if we have that Jhon earns a salary of $ 2800 and a commission of 7.5% of the sales he made for a value of $ 21400

to know the gain of jhon we have to add the basic salary with the percentage of what he sold

x = 2800 + 21400 * 7.5%

7.5% can be expressed as 7.5/100

x = 2800 + 21400 * 7.5/100

x = 2800 + 21400 * 0.075

x = 2800 + 1605

x = 4405

8 0
4 years ago
A building lot in a city is shaped as a 30 degrees, -60 degrees, -90 degrees triangle. The side opposite the 30 degrees angle me
satela [25.4K]
If you want to solve this problem on your own, you could just view my answers:

<span>a. 41 square root of 3

b. hypotenuse= 41x2= 82 ft.
 
c. sine: 41/82-.5

cos: 41sqr. rt. 3/82= .8660

tan: 41/ 41 square root 3= .5774
</span>
I hope my answers has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
4 years ago
The length of a rectangle is 4.2 cm more than 2 times the width. If the perimeter of the rectangle is 42.6 cm, what are its dime
Tema [17]

Hi there!

The general formula to find the perimeter of a rectangle is :

P = (Length × 2) + (Width × 2)

Let's say the width of the rectangle is "x".

The lenght of the rectangle is equal to 2x + 4.2


Replace everything you know in the formula :

42.6 = ((2x + 4.2) × 2) + ((x) × 2)


Simplify everything :

2x × 2 = 4x

4.2 × 2 = 8.4

x × 2 = 2x


42.6 = 4x + 8.4 + 2x

42.6 = 6x + 8.4


Isolate "x":

42.6 = 6x + 8.4

Subtract 8.4 from each side of the equation

34.2 = 6x

Divide each side of the equation by 6

5.7 = x

5.7cm = the width of the rectangle


Since the lenght of the rectangle is equal to 2 times the width of the rectangle plus 4.2 :

Length = (2 × 5.7) + 4.2

Length = 15.6cm


42.6 = (2 × 15.6) + (2 × 5.7) ? → YES


There you go! I really hope this helped, if there's anything just let me know! :)

5 0
4 years ago
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