I WILL MARK BRAINLIEST Twelve is added to a number and then the sum is multiplied by 4/5 to give 23.6. What is the number?

Mathematics

1 answer:

Aliun [14]3 years ago

7 0

Answer: 17.5 or 35/2

Step-by-step explanation:

(If you change 4/5 to a decimal, it makes this easier. 4/5 would be 0.8.)

23.6 = (12 + x)*0.8

23.6 = 9.6 + 0.8x

14 = 0.8x

17.5 = x

17.5 as an improper fraction would be 35/2.

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vladimir2022 [97]

Twice a number increased by 5= 2x+5

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Five subtracted from twice a number= 2x-5

Twice a number, less 5= 2x-5

7 0

3 years ago

12.5 = 3x = 20

kotegsom [21]

The correct answer would be B

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3 years ago

What is <img src="https://tex.z-dn.net/?f=%20%20%20cot%280.349%20%29" id="TexFormula1" title=" cot(0.349 )" alt=" cot(0.

AnnZ [28]

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8 0

4 years ago

15y^-11/3y^-11, show steps I need help please don't understand how to do it.

tester [92]

One may note, you never quite asked anything per se, ahemm, if you meant simplification.

$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
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\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{ n}}}\implies \cfrac{1}{a^{-{{ n}}}}\\\\
-------------------------------\\\\
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\\\\\\
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4 years ago

People with a house number ending in 1 are polled. Is this sample random? A) Yes B) No

aleksandrvk [35]

Answer:

Step-by-step explanation:

A random sample is a poll in which the individuals who are taking the poll are not specific or biased. In this case it is a specific group of people, people who'se house number ends with 1

Answered by g a u t h m a t h

6 0

3 years ago