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3 years ago

Which expression can be used to find 15% of 20?

Mathematics

1 answer:

dezoksy [38]3 years ago

5 0

Answer:

Expression: 0.15 * 20

Equation: 0.15 * 20 = 3

Step-by-step explanation:

This expression was found by dividing 15% by 100 to convert it into a decimal (0.15) that can be used to multiply with 20 to get your answer.

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What’s five and one-half less than 3 times a number ?

notka56 [123]

The equation is 3n - 5 1/2. 5 1/2 = 5.5

3n - 5.5

n could equal 1 so, 3 x 1 - 5.5 = -2.5

3n - 5 1/2 = -2.5

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4 years ago

How is 9/5 expressed as the sum of a whole number and fraction

MAXImum [283]

To do this, divide 9 by 5. it is one, with a remainder of 4. so the 4 goes over 5 as a fraction. the answer is then 1 4/5

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3 years ago

ΔTOY has coordinates T (−3, 4), O (−4, 1), and Y (−2, 3). A translation maps point T to T' (−1, 1). Find the coordinates of O' a

Setler79 [48]

Given:
T (-3,4) ; O (-4,1) ; Y (-2,3)
T'(-1,1) ;

T
-3 move forward 2 points to reach -1
4 move forward 3 points to reach 1

O
-4 move forward 2 points to reach -2
1 move forward 3 points to reach -2

Y
-2 move forward 2 points to reach 0
3 move forward 3 points to reach 0.

O'(-2,-2) ; Y'(0,0) 1st option.

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3 years ago

Read 2 more answers

Damian needs to buy 5 pints of juice. The store does not sell juice in pints, so Damian buys 3 quarts of Which statement is true

jenyasd209 [6]

Damian buys the quarts and splits them up into pints

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4 years ago

Read 2 more answers

Is the following statement correct? Explain.

Maksim231197 [3]

Answer: The answer is NO.

Step-by-step explanation: The given statement is -

If the graph of two equations are coincident lines, then that system of equations will have no solution.

We are to check whether the above statement is correct or not.

Any two equations having graphs as coincident lines are of the form -

$ax+by=c,\\\\dax+dby=dc,\\\\\textup{where}~~d\neq 1.$

If we take d = 1, then both the equations will be same.

Now, subtracting the second equation from first, we have

$a(1-d)x+b(1-d)y=c(1-d)\\\\\Rightarrow ax+by=c,~\textup{since}~d\neq 1,~\textup{so}~1-d\neq 0.$

Again, we will get the first equation, which is linear in two unknown variables. So, the system will have infinite number of solutions, which consists of the points lying on the line.

For example, see the attached figure, the graphs of following two equations is drawn and they are coincident. Also, the result is again the same straight line which has infinite number of points on it. These points makes the solution for the following system.

$2x+5y=10,\\\\6x+15y=30.$

Thus, the given statement is not correct.

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3 years ago