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3 years ago

Y = 7/8u + 9, solve for u

Mathematics

1 answer:

vivado [14]3 years ago

3 0

Answer:

$u=\frac{8y-72}{7}$

Step-by-step explanation:

Flip the equation.

$\frac{7}{8}u+9=y$

Add -9 to both sides

$\frac{7}{8}u+9(-9)=y(-9)$

$\frac{7}{8}u=y-9$

Divide both sides by 7/8

$u=\frac{8y-72}{7}$

hope this helps

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If f (x) = 5 x minus 25 and g (x) = one-fifth x + 5, which expression could be used to verify g(x) is the inverse of f(x)?

Vinil7 [7]

Answer:

The expression used to represent g(x) as inverse of f(x) is $\frac{1}{5}(5x-25)+5$

Option B is correct.

Step-by-step explanation:

We are given:

$f(x)= 5x-25\\g(x)=\frac{1}{5}x+5$

We need to find the expression that could be used to verify g(x) is the inverse of f(x).

We know that $g(f(x))=x$ is inverse of function

So placing value of f(x) in g(x)

$g(f(x))=\frac{1}{5}(5x-25)+5$

So, the expression used to represent g(x) as inverse of f(x) is $\frac{1}{5}(5x-25)+5$

Option B is correct.

We can also solve to prove that $g(f(x))=x$

$g(f(x))=\frac{1}{5}(5x-25)+5\\g(f(x))=\frac{5}{5}(x-5)+5\\g(f(x))=x-5+5\\g(f(x))=x$

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3 years ago

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Diego measured the number of cups of water in 15 bottles of various sizes. He made this line plot to show how many of each size

djyliett [7]

Answer:

A plot would be very useful to solve the question.

Step-by-step explanation:

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3 years ago

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Answer:

21 books were added

Hope I helped,

PumpkinSpice1

☼♥☼♥☼♥☼♥☼

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3 years ago

1/5r+ 8/15 when r=1/3

ZanzabumX [31]

Answer:

3/5

Step-by-step explanation:

1/5r + 8/15

~Substitute

1/5(1/3) + 8/15

~Simplify

1/15 + 8/15

~Add

9/15

~Simplify

3/5

Best of Luck!

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3 years ago

How many ways can Rudy choose 4 pizza toppings from a menu of 14 toppings if each topping can only be chosen once

madam [21]

Answer:

24,024

Step-by-step explanation:

Calculation for How many ways can Rudy choose 4 pizza toppings from a menu of 14 toppings

The 4 pizza toppings from a menu of 14 toppings will be 14,13,12,11

Hence,

14*13*12*11=24,024

Therefore the numbers of way Rudy can choose 4 pizza toppings from a menu of 14 is 24,024

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3 years ago