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FinnZ [79.3K]
3 years ago
6

Solve for r 5(r-10)=-51

Mathematics
2 answers:
masya89 [10]3 years ago
3 0

Answer:

r = -0.2

Step-by-step explanation:

5r-50=-51

5r=-1

r= -0.2

Thats what I got based on PEMDAS...

zzz [600]3 years ago
3 0

Answer:

\boxed {r = -\frac{1}{5}}

Step-by-step explanation:

Solve for the value of r:

5(r - 10) = -51

-Use <u>Distributive Property</u>:

5(r - 10) = -51

5r - 50 = -51

-Add 50 on both sides:

5r - 50 + 50 = -51 +50

5r = -1

-Take 5 and divide it on both sides:

\frac{5r}{5} = \frac{-1}{5}

\boxed {r = -\frac{1}{5}}

Therefore, the value of r is -\frac{1}{5}.

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What is the minimum number of degrees in order for the pentagon to map onto itself
amid [387]

Answer:

We can divide the pentagon (5 sides) into five inscribed triangles with central vertex angles of 72 degrees. 360 degrees ÷ 5 = 72 degrees....complete rotation is 360 degrees So each rotation of the pentagon of 72 degrees will be identical

Step-by-step explanation:

hope it helps :))

3 0
3 years ago
Express the fractions 1/2, 3/16, and 7/8 with an LCD
12345 [234]
You first need to find the LCD (lowest common denominator). You will need to find the smallest number that is a multiple of all numbers that is the denominator (2, 16, 8). Or, to say it another way, all the numbers in the denominator need to be a factor of this number. 

You can find this by first checking if the largest number that is the denominator-- in this case 16-- is already the LCD, which means 16 is divisible by all the other numbers. 

If this does not work, then multiply all the numbers together to get the LCD-- since you multiplied them together, you know that they will all be factors of the product. 

However, you will be able to see that 16 is indeed the lowest common denominator: 

2 × 8=16 

8 × 2=16 

16 × 1=16 

So, after you find the LCD, multiply both the numerator and the denominator by the number that you would need to multiply the denominator to get the LCD (the whole point is that you want to get the denominator to be the LCD, but to do that you need to multiply both the top and bottom by the same number to keep the fraction the same). 

(1/2) x (8/8)= 8/16 

(3/16) x (1/1)= 3/16 

(7/8) x (2/2)= 14/16

6 0
3 years ago
Which expression is equivalent to -2(-7h -
disa [49]

Answer:

a. 20h + 8

Step-by-step explanation:

-2(-7h-4) + 6h = 14h + 8 + 6h = 20h + 8

3 0
2 years ago
Geometry help please!
photoshop1234 [79]

Algebra is number 3 - You have subtracted the measure of angle HKI from the equation.

Transitive property of equality is number 2 - Because both pairs of angles equal 180 degrees, you can set them equal to each other.

Definition of congruence is number 4 - The congruence symbol is in the equation, which tells you that the two angles are congruent.

Angles forming a linear pair sum to 180 degrees is number 1 - 180 degrees is in the equations given and the angles all form linear pairs.

Hope this helps!! :)

8 0
3 years ago
A company policy requires that for every 30 employees, there must be 3 supervisors. If there are 267 supervisors at the company,
Alexus [3.1K]

267 supervisors will have 2670 employees.

Step-by-step explanation:

Let x be the number of employees.

Given,

3 supervisors = 30 employees

1 supervisor = \frac{30}{3}

1 supervisor = 10 employees

As one supervisor has 10 employees, 267 supervisors will have;

x = 267*10

x= 2670 employees

267 supervisors will have 2670 employees.

Keywords: Multiplication.

Learn more about multiplication at:

  • brainly.com/question/8782252
  • brainly.com/question/877887

#LearnwithBrainly

4 0
3 years ago
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