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White raven [17]
3 years ago
6

What is the solution to this equation?

Mathematics
2 answers:
Alex777 [14]3 years ago
5 0

Answer:

21

Step-by-step explanation:

since we are looking for the value of x, we make it the subject of the formula(stand alone) and to do that + 13 would have to cross over the equality sign.when a positive number crosses over the equality sign it changes to a negative number .

Therefore,x +13=34

x=34 -13

x=21(d)

user100 [1]3 years ago
3 0
Answer:
d. 21

Explanation:
Step 1 - Subtract 13 from both sides
x + 13 = 34
x + 13 - 13 = 34 - 13
x = 21
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Anne can make 6 headbands 3/5 from meters of cloth. Which expression shows the amount of cloth needed to make 1 headband? What i
Marina CMI [18]

The amount of cloth needed to make 1 headband is 10 meters.

<h3>Unit value</h3>

  • Number of headbands Anne made = 6

  • Total clothes used = 3/5 meters

Cloth needed to make 1 headband = Number of headbands Anne made / Total clothes used

= 6 ÷ 3/5

= 6 × 5/3

= (6 × 5) / 3

= 30/3

= 10 meters

Therefore, the amount of cloth needed to make 1 headband is 10 meters.

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4 0
2 years ago
Find the values of the variables
ki77a [65]

The values of the variables are k = -6 , w = ± 9 , f = -7

Step-by-step explanation:

To solve these problems we will compare the elements inside the [  ]

[-12 , -w²] = [2k , -81]

[2f , 3] =  [-14 , 3]

That mean:

1. -12 = 2k

2. -w² = -81

3. 2f = -14

∵ 2k = -12

Divide both sides by 2 to find k

∴ k = -6

∵ -w² = -81

Divide both sides by -1

∴ w² = 81

Take √ for both sides

∴ w = ± 9

∵ 2f = -14

Divide bith sides by 2

∴ f = -7

The values of the variables are k = -6 , w = ± 9 , f = -7

Learn more:

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8 0
3 years ago
5. How many solutions does the equation<br> 7x + 3x – 8= 2(5x – 4) have? Explain.
GREYUIT [131]

Answer:

Your answer is: Infinitely Many

Any value of  x  makes the equation true.  Also, they are all real numbers.

Step-by-step explanation:

If you are solving to find all Complex Number Solutions: ↓

Solve the equation to find all of the complex solutions and that means that equation will be always true.

Hope this helped : )

6 0
3 years ago
Write 1.2 x 10-4 in decimal form.
katrin [286]

The number (in scientific notation) is:

1.2\times10^{-4}

The power of "-4" tells us to move the decimal point 4 places to the left.

So, moving it, the number becomes:

1.2\times10^{-4}=0.00012

3 0
1 year ago
100 POINTS PLEASE ANSWER IM BEGGING YOU!!!
Kazeer [188]

Answer:

A (1/7)

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5 0
3 years ago
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