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lianna [129]
3 years ago
11

If 5 times a number increased by 4, the result is at least 19. Find at least possible number that satisfies these conditions

Mathematics
2 answers:
Ket [755]3 years ago
6 0

Answer:

X=3

Step-by-step explanation:

To the question

Let the number be x

And being 5 times of the number is 5x

And been increased by 4

(5x+4)=19

5x+4=19

Substrate 4 from both sides

5x=15

Divide both sides by 5

X=3

11Alexandr11 [23.1K]3 years ago
3 0

Answer:

The number is 3

Step-by-step explanation:

First we want to make an equation, 5 times n (a number) plus 4 = 19 (by using 19 the least possible awnser we know that it will be the least possible number that satisfied the requirements, if it didn't work we could have gone up one number until we found something that worked)

5n +4 =19     subtract 4 from both sides so that the 5n is alone

5n = 15      now divide by 5 so that the n is all alone

n=3

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ElenaW [278]

let's firstly convert the mixed fractions to improper fractions.


\bf \stackrel{mixed}{3\frac{1}{2}}\implies \cfrac{3\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{7}{2}}~\hfill \stackrel{mixed}{1\frac{1}{3}}\implies \cfrac{1\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{4}{3}} \\\\[-0.35em] \rule{34em}{0.25pt}


\bf \begin{array}{ccll} miles&hours\\ \cline{1-2}\\ \frac{7}{2}&1\\[0.8em] m&\frac{4}{3} \end{array}\implies \cfrac{~~\frac{7}{2}~~}{m}=\cfrac{~~1~~}{\frac{4}{3}}\implies \cfrac{7}{2m}=\cfrac{3}{4}\implies 28=6m \\\\\\ \cfrac{28}{6}=m\implies \cfrac{14}{3}=m\implies 4\frac{2}{3}=m

6 0
3 years ago
Which has the same solution as 2(x+4)= -7 -3x
Butoxors [25]
I hope this helps you



2x+8= -7-3x



5x= -15


x= -3
7 0
3 years ago
HEY<br><br> QUICK Question? How AM I suppose to solve using the Pythagoras's theorem
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Step-by-step explanation:

heyy

so a Pythagoras theorem always works on a right angle triangle only

the longest side that is the side not involved in the right angle triangle is called the hypotenuse

the other two involved sides are called legs

so we say one leg is a

other leg is b

and hypotenuse is c

the formula is a²+b²=c²

so if a= 4cm

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then find c

so a²+b²=c²

so 16+9=25

so square root of 25 is 5²

so c is equal to 5 cm

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2 years ago
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Sliva [168]

Step-by-step explanation:

Step 1: Divide 462 by 48 to get the number as a decimal. 462 / 48 = 9.62

Step 2: Multiply 9.62 by 100. 9.62 times 100 = 962.5. That's all there is to it!

Note that you can reverse steps 1 and 2 and still come to the same solution. If you multiply 462 by 100 and then divide the result by 48, you will still come to 962.5!

3 0
2 years ago
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The roof of a building is 9 m high. A rope is tied from the roof to a peg on the ground 12 m away from the wall. What is the len
Alexus [3.1K]

Answer:

15 m

Step-by-step explanation:

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Lenght from building l= 12m

let the length of the rope be x=???

Applying Pythagoras theorem

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square both sides

x=√225

x=15 m

Hence the length of the rope is 15 m

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