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Hoochie [10]
3 years ago
6

5x+1=20 what do x equal

Mathematics
2 answers:
siniylev [52]3 years ago
5 0

Answer:

x = 3 \frac{4}{5}

Step-by-step explanation:

5x+1=20

To solve the equation above, we will follow the steps below;

Subtract 1 from both-side of the equation

5x + 1 - 1 = 20 -1

5x = 19

Divide both-side of the equation by 5

\frac{5x}{5} = \frac{19}{5}

(On the left-hand side of the equation, 5 at the numerator will cancel-out 5 at the denominator leaving us with just x, while on the right-hand side of the equation 19 will be divided by 5)

x = \frac{19}{5}

x = 3 \frac{4}{5}

frez [133]3 years ago
4 0
X = 3.8

5x+1=20
Subtract 1 on both sides to get:
5x=19
Divide by 5 on both sides to get:
x=19/5

You can leave it as a fraction as 19/5, or convert to a decimal as 3.8.
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108,930,000 in scientific notation
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Answer:

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3 years ago
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The city park in which Allen plays is a square and measures exactly one million square feet. Which side dimensions produce the m
valentina_108 [34]
A- 998.8×997.7=996502.76
B- 998.84×997.73=996572.6332
C- 998.843×997.731=996576.6252
D - 999×998=997002

So D is the answer
4 0
3 years ago
Which equation could be used to calculate the sum of the geometric series? One-third + two-ninths + StartFraction 4 Over 27 EndF
kondaur [170]

Answer:

S 5 = StartFraction one-third (1 minus (two-thirds) Superscript 5 Baseline) Over (1 minus two-thirds) EndFraction

Step-by-step explanation:

Given the geometric series:

1/3+2/9+4/27+8/81+16/243

First we must know that the series is a finite series with just 5terms.

Before we can know the formula to calculate sum of the first five terms of the series, we must determine its common ratio (r) first.

r = (2/9)÷1/3 = 4/27÷2/9= 8/81÷4/27

r = 2/9 × 3/1

r = 2/3

Similarly;

r = 4/27×9/2

r = 2/3

Since all values of r is the as them the common ratio is 2/3.

If r< 1 in geometric series, then the formula for finding its sum is applicable

Sn = a(1-rⁿ)/1-r

a is the first term = 1/3

r is the common ratio = 2/3

n is the number of terms = 5

Substituting the values in the formula we have:

S5 = 1/3{1-(2/3)^5}/1-2/3

This gives the requires equation

S 5 = StartFraction one-third (1 minus (two-thirds) Superscript 5 Baseline) Over (1 minus two-thirds) EndFraction

4 0
3 years ago
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Solve each of the following equations for xx using the same technique as was used in the Opening Exercise.
aleksandrvk [35]

Answer:

The value of x is 3/2.

Step-by-step explanation:

Given data in the question:-

3^2^x=27

We have to find the value x.

Let 3^2^x=27 be eq(i).

Solving eq (i)

3^2^x=3^3

using the properties of the exponents we have

if aⁿ=aˣ

then n=x

2x=3\\x=3/2

Hence the answer is 3/2.

4 0
3 years ago
Simplify, answer should have only positive exponents.
Valentin [98]

\frac{ab}{ - 2}
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