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Anon25 [30]
3 years ago
9

Seven fifths of a number, z, subtracted from 6 times the same number is 3 .

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
6z-7z/5=3

(30z-7z)/5=3

30z-7z=15

23z=15

z=15/23
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ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are
anygoal [31]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

\frac{x}{y}=\frac{5}{3}

see the model in the attached figure N 1

so

y=\frac{3}{5}x

y=0.60x

This is the equation of a linear direct variation

The relationship between the variables x and y is proportional

see the model in the attached figure N 2

4 0
3 years ago
ANSWER ONLY IF U KNOW, OR THINK U KNOW.<br><br><br> (ILL MARK U BRAINLIEST)
alexandr1967 [171]

Answer:

I KNOW FOR SURE

Step-by-step explanation:

if that's all the question is then I definitely know the answer ;)

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4 0
3 years ago
Read 2 more answers
Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?
exis [7]

The solution set of the equation is all reals ⇒ 3rd answer

Step-by-step explanation:

The solution set of an function is the set of all vales make the equation true. The equation has:

  • Solution if the left hand side is equal to the right hand side
  • No solution if the left hand side doesn't equal the right hand side

∵ The equation is 18 - 3n + 2 = n + 20 - 4n

- Add the like terms in each side

∴ (18 + 2) - 3n = (n - 4n) + 20

∴ 20 - 3n = -3n + 20

- Add 3n to both sides

∴ 20 = 20

In the equation of one variable, when we solve it if the variable is disappeared from the two sides, and the two sides of the equations are equal, then the variable can be any real numbers, if the two sides are not equal, then the variable couldn't be any value

∵ The the variable n is disappeared

∵ The left hand side = the right hand side

∴ n can be any real number

∴ The solution set of the equation is all real numbers

The solution set of the equation is all reals

Learn more:

You can learn more about the equations in brainly.com/question/11229113

#Learnwithbrainly

8 0
3 years ago
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Which of the following setups, when solved, would give you the number of seconds in one week?
sweet-ann [11.9K]

c) 1 week x 7 days/1 week x 24hr/1 day x 60min/1hr x 60s/1min =

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7 0
4 years ago
Can someone helllllppp me on 5 more problems like this n I’ll give u 20 dollars in cashapp plzzz I’m being serious
Vlada [557]

Answer:

y = x - 5

Step-by-step explanation:

\rm Solve \:  for  \: y: \\  \rm \longrightarrow  x  - y= 5 \\  \\  \rm Subtract  \: x  \: from  \: both \:  sides: \\  \rm \longrightarrow x - y - x = 5 - x \\ \\   \rm \longrightarrow -y = 5 - x \\  \\  \rm Multiply \:  both  \: sides  \: by  \: -1: \\  \rm \longrightarrow  - y \times ( - 1) = (5 - x) \times ( - 1) \\  \\  \rm \longrightarrow y = x - 5

5 0
3 years ago
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