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Zielflug [23.3K]
3 years ago
10

Which of the following are algebraic equations?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
6 0

Answer:

The equation (i) is the only algebraic equations.

Step-by-step explanation:

From the given examples of equations the equation (i) is the only algebraic equations.

(i) 3.1x - 11.2 = 2.5x + 2.3.

This is an example of algebraic equation with single variable x.

(ii) ???? + ???? = 2????

This could be an equation with variable ???? but both the sides being equal they cancel each other and no equation remains.

(iii) 1/2 +1/2 = 2/4

This is not an algebraic equation since there is no variable. (Answer)

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Identify the property used in the first five steps to solve the equation 2(x – 5) - 6x= -22
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<span>To answer this question, you need to multiply the number inside the bracket first. Then you can move the number to the right side of the equal sign and keep the x on the left side of the equal sign. The step would be like this

2(x – 5) - 6x= -22
(2x - 10) - 6x = -22
2x - 6x  = -22 +10
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4 0
3 years ago
Given that 5x:9=7:3 calculate the value of x. give your answer in its simplest form.
Hitman42 [59]

\huge\underline{\red{A}\green{n}\blue{s}\purple{w}\pink{e}\orange{r} →}

<h3>x = 21/5</h3>

Step-by-step explanation:

<h3>___________________________</h3>

<h3>Given →</h3>

5x:9 = 7:3

<h3>So,</h3>

→ 5x/9 = 7/3

→ x = (7 × 9)/(3 × 5)

→ x = 21/5

<h3>___________________________</h3>

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8 0
1 year ago
Can anyone help me, i will give brainiest.
laila [671]

Answer: ∠DOB: 48°

Step-by-step explanation:

1. we need an equation first. the sum of all angles (108°, n°, 2n°) is equal to 180°. we can depict this with the equation: 108°+2n°+n°=180°

2. now we can solve for the missing variable, n.

108°+3n°=180° → subtract both sides by → 3n°=72° → divide both sides by 3 → n=24°

3. now that we know that n=24°, we can solve the value of ∠DOB. we can see that ∠DOB is 2n° which we just plug the number we got for n into the equation. 2*24=48° meaning ∠DOB is 48°

hope this heped! ♡

7 0
2 years ago
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Find the slope of the line that passes through<br><br><br> (7,-1) and (9,0)
mafiozo [28]

Answer:

1/2 or 0.5

Step-by-step explanation:

so to find the slope of two points you use the slope formula which is rise over run, y2-y1/x2-x1. so that would be -1-0/7-9. leading to -1/-2. so the slope is 1/2 or 0.5.

5 0
3 years ago
A water sprinkler sends water out in a circular pattern. How large is the watered area if the radius of the watering pattern is
Serhud [2]

Answer:

706.5 ft^2

Step-by-step explanation:

area = radius^2 (Pi)

15^2(3.14) = 706.5

5 0
2 years ago
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