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2 years ago

2/5 of a number is -8 what is the number

Mathematics

2 answers:

Stella [2.4K]2 years ago

6 0

Answer:

-20

Step-by-step explanation:

let x be the whole. 2/5 of x = -8 so -8 1/5 is -4. -4*5 to find the whole so its -20

lidiya [134]2 years ago

3 0

Answer: The number is 35

If 2/5 of a number is 14, then we will perform a function of cross multiplication in order to determine the missing number.

Step-by-step explanation:

Let the missing number = y

To perform a cross multiplication, firstly, we multiply the numerator of first fraction by the denominator of the second fraction.

Secondly, we multiply the denominator of the first fraction by the numerator of the second fraction. Then, the resulting values are divided by each other to get a final numerical value.

Therefore, the missing number (y) will the denominator of the second fraction i.e. 14/y . The first fraction is 2/5.

Thus,

2/5 of 14/y

2/5= 14/y

(2 x y) = (5 x 14)

(2y) = (70)

2y = 70

Since we are looking for value of y, divide both sides by the value beside y

Thus,

2y/2 = 70/2

y = 35

Therefore, the missing number is 35

LEARN MORE:

2/5 of a number is 14. What's the number brainly.com/question/12161407

fraction brainly.com/question/6201432

KEYWORDS:

2/5 of a number is 14

fraction

cross multiplication

number

denominator

numerator

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Step-by-step explanation:

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3 years ago

Simplify the expression. - (m m + 3n - 13)

natulia [17]

Answer:

$= - {m}^{2} - 3n + 13$

Step-by-step explanation:

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3 years ago

the initial price of a home entertainment system is $34,000. It is discounted by 10% and then by a further 26%. Find the price o

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The final price of the item is $22,644

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2 years ago

Point M is the midpoint of segment AB. If AM = 50 – 3x and MB = –20 + 4x, find the value of AM

love history [14]

The answer to your question is 20

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2 years ago

Read 2 more answers

Which of the following is the value of x? A. 2 B.11 C. 20 D. 29

Lunna [17]

Answer:

Step-by-step explanation:

180= 45+ (5x+35)

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3 years ago