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rusak2 [61]
3 years ago
5

Convert the fraction to a decimal. 1/5=

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0

Answer: 0.2

Step-by-step explanation: Decimals represent fractions with denominators of 10, 100, 1,000, and so on.

Therefore, in order to write 1/5 as a decimal, we must first

find a fraction equivalent to 1/5 with a denominator of 10.

So we multiply the numerator and denominator of

1/5 by 2 to get the equivalent fraction 2/10.

Now we have a fraction that can be written as a decimal.

Since the tenths place is 1 place to the right

of the decimal, we can write 2/10 as 0.2.

BigorU [14]3 years ago
4 0

Answer:

0.2

Step-by-step explanation:

1/5 or one-fifths is a whole divided into 5 equal parts.

Suppose 100. Divide 100 into 5 equal parts and we get 20.

The whole 1 divided into 5 equal parts is 0.2.

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What is the explicit formula for the sequence below?<br><br> 4, -12, 36, -108 ...
Temka [501]

Answer:

This is a geometry sequence (I.e each term is found by multiplying the same value to the previous term).

T1 = 4

T2 = -12 = T1 X (-3) = 4 X (-3)

T3 = 36 = T2 X (-3) = 4 X (-3)^2

T4 = 108 = T3 X (-3) = 4 X (-3)^3

The general (explicit) formula for the n-th term of this sequence is:

S(n) = 4 X (-3)^(n-1)

4 0
3 years ago
If (x + y)^2 = 105 and x^2 + y^2 = 65, what is the value of xy?
lesya692 [45]
\boxed { \boxed {(a + b)^2 = a^2 + 2ab + b^2}}

(x + y) ^2 = 105

x^2 + 2xy + y^2 = 105

x^2 + y^2  + 2xy = 105


\text{Given that } x^2 + y^2 = 65,

65 + 2xy = 105

2xy = 105 - 65

2xy = 40

xy = 20

\boxed { \boxed {\text{Answer: xy = 20}}}
8 0
3 years ago
Five times a number increased by 15 equals 8 decreased by twice the number. Write an equation and solve showing all work.​
ivanzaharov [21]

Answer:

5x+15 = 8 -2x

Explanation:

8 0
3 years ago
WZ and XR are diameters what is thr measure of ZWX?
castortr0y [4]

Answer:

mZWX = 214°

Step-by-step explanation:

In a circle C, XR and WZ are two diameters.

∠ XCW = 34° and ∠ YCZ = 86°

We have to find the measure of arc ZWX

Since ∠XCW + ∠XCY + ∠YCZ = 180° [ angles on a straight line ]

34° + ∠XCY + 86° = 180°

120° + ∠XCY = 180°

∠XCY = 180 - 120 = 60°

Now arc ZWX = 360° - (∠XCY + ∠ YCZ)

                       = 360° - (60° + 86°)

                       = 360° - 146°

                       = 214°

Therefore answer is arc ZWX = 214°

8 0
3 years ago
Malachy was thinking of a number. Malachy halves the number and gets an answer of 67.3.
Nimfa-mama [501]

Step-by-step explanation:

Let the number be x.

ATQ,

Malachy halves the number and gets an answer of 67.3.

\dfrac{x}{2}=67.3

This the equation for the given statement.

It can also be written as :

x=2\times 67.3\\\\x=134.6

Hence, this is the required solution.

4 0
3 years ago
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