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

You might be interested in

Roland has an appointment tomorrow at 8:45

Marina86 [1]

Two hours earlier than the appointment start time, so he should get up at 6:45am, at latest.

7 0

3 years ago

Write an inequality for the given graph.

Aliun [14]

Y=MX+B

M = slope

B = y intercept (number that intersects with the line in the y axis)

y=-3/4x+2

It starts on the y intercept (2) then we travel to the next point (4 on the x axis)

So we travel 3 spaces down (-3) landing on the origin (0,0) then four spaces to the right (4). Getting the slope of -3/4 (rise over run)

Then just plug in these into the equation

y = -3/4 + 2

5 0

3 years ago

Beth does not charge a registration fee for her dog-walking service, but she charges $5 per mile that each dog is walked. Tonya’

GuDViN [60]

Answer: 10 miles.

Step-by-step explanation:

Let m the number of miles that each dog is walked.

It is given that Beth does not charge a registration fee for her dog-walking service, but she charges $5 per mile that each dog is walked.

Amount charged by Beth = 5m

Tonya’s dog-walking service charges a registration fee of $20, plus $3 per mile that each dog is walked.

Amount charged by Tonya = 20+3m

We need to find the number of miles m for which Tonya and Beth would charge the same amount.