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OverLord2011 [107]
3 years ago
7

To turn 2/5 into a decimal what operation must you preform

Mathematics
1 answer:
saw5 [17]3 years ago
7 0

Answer:

2/5 =0.4

Step-by-step explanation:

Decimals are one of the method of representation of  fractions in which there is  power of 10 in the denominator of the fraction. They are  10,100,1000,10,000 ,100,0000 and so

Example = 1/10 = 0.1

1/100 = 0.01

1/1000 = 0.001

In 2/5 we have to make the denominator 10

since in denominator there is five , can be made 10 by multiplying it by 2

2/2 = 1 and 1* x = x , hence if we multiply numerator and denominator by 2 it won't change the fraction.

2/5×2/2=2×2/5×2=4/10=0.4

Thus, 2/5 =0.4 in decimal form.

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To which subset of real numbers does -3 belong?
inessss [21]
<h3>Answer: C) integers and rational numbers</h3>

Explanation:

The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically any number that does not have a decimal or fractional part to it. We can say that this set is composed of positive and negative whole numbers along with 0. So this is why -3 is in the set of integers.

The value -3 is not in the set of whole numbers because the set of whole numbers is {0, 1, 2, 3, 4, 5, 6, ...}, so this rules out choice D.

Choice B is also eliminated because -3 is a rational number. We can write -3 as a fraction of two integers, example: -3 = -3/1. Any rational number is not irrational, and vice versa.

Choice A is ruled out because it's not the most complete answer (though its technically true).

8 0
3 years ago
1 20/50 as a decimal PLEASE THIS IS DEW TOOMARROW MORNING
Gnesinka [82]

Answer:

1.4

Step-by-step explanation:

Ex.: 1/2, 2 1/2, 5/3, etc. Note that 2 1/2 means two and half = 2 + 1/2 = 2.5

7 0
3 years ago
Find the slope, y-intercept, and x-intercept of the graph of 3x+7y=14 Show your work in detail.
Vika [28.1K]
3x + 7y = 14

Subtract 3x from both sides

7y = -3x + 14

Slope is equal to -3.
3 0
4 years ago
the coat of a customers smartphone bill can be modeled by the equation C=10g+50 where g is the number of gigabits of data the cu
natulia [17]

Answer:

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Step-by-step explanation:

Given the cost of a customers smartphone bill,

C=10g+50

We are required to factor the polynomial.

First, determine the G.C.D of both terms

  • The GCD of 10g and 50 is 10

Next, we divide each of the term by 10 and balance it by multiplying the expression by 10.

C=10g+50\\=10(\frac{10g}{10}+\frac{50}{10})\\C=10(g+5)

The cost polynomial factored is C=10(g+5).

4 0
3 years ago
Solve the following system using substitution, showing all work.
SCORPION-xisa [38]

Answer: -3x+2y=16 equals y = 3/2x+8

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Step-by-step explanation:

8 0
3 years ago
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