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djverab [1.8K]
2 years ago
8

7x+42 what is x please i need help

Mathematics
2 answers:
Taya2010 [7]2 years ago
8 0

Answer:

x = 6

Step-by-step explanation:

7x = 42

Divide both sides by 7

x = 6

Usimov [2.4K]2 years ago
7 0

Answer: 49x I am pretty sure

Step-by-step explanation: you take 7 + 42= 49 then you put the x there

Then your answer should be correct please dont be mad if its not correct!!

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5c + 3 -2c + 5 simplify the expression
snow_lady [41]
5c + 3 - 2c + 5

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3 0
3 years ago
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Is this correct? If not plz get answers 25points!!!
katen-ka-za [31]

That is correct.

Sqrt 5 x sqrt20

Apply the radical rule to get sqrt( 5 x 20)

Simplify to get sqrt(100)

Sqrt(100) = 10

8 0
2 years ago
The third term in an arithmetic sequence is 14 and the fifth term is 20. If the first term is a1, which is an equation for the n
Kruka [31]

Answer:

The equation for nth term is 3n + 5.

Step-by-step explanation:

Let a1 be a,

a3 = a + (n - 1)d

or, 14 = a + (3 - 1)d

so, 14 = a + 2d

Now,

a5 = a + (n - 1)d

or, 20 = a + (5 - 1)d

or, 20 = a + 4d

now,

a + 4d = 20

a + 2d = 14

now,

a + 4d - ( a + 2d) = 20 - 14

or, a + 4d - a - 2d = 6

or, 2d = 6

so, d = 3

Now,

a + 2d = 14

or, a + 2(3) = 14

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so, a = 8

Now,

an = a + (n - 1)d

or, an = 8 + (n - 1)3

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5 0
3 years ago
Kai used fabric measuring 5 yards in length to make each costume for a school play. The relationship between the number of costu
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The best interpretation of 2 in the given context is that; 2 represents the total length of fabric in yards purchased when no costumes were made.

<h3>Slope Intercept Form</h3>

We are given the relationship between the number of costumes that Kai made, x, and the total length of fabric that he purchased y, in yards as; y - 5x = 2

Where;

  • x is number of costumes made
  • y is total length of fabrics purchased.

Now, the general slope intercept form of an equation is given by; y = mx + c

Where c is the y-intercept which is the point where x is zero.

Thus, our equation can be rewritten as;

y = 5x + 2

Comparing with y = mx + c, we can say that c = 2

This means that at x = 0, y = 2.

In conclusion, the value 2 represents the length of yards purchased when no costumes were made.

Read more about slope-intercept form at;brainly.com/question/1884491

5 0
3 years ago
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