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3 years ago

I have to solve each system algebraically y = x -8 y=5x

Mathematics

2 answers:

stiv31 [10]3 years ago

8 0

Answer:

X= -2 and Y= -10

Step-by-step explanation:

I don't know what you are asking on this one but i hope that me finding the value of X and Y helps you.

Dmitry [639]3 years ago

3 0

Answer:

x=-2, y=-10

Step-by-step explanation:

Since both equations are equal to y, we can set them equal to each other and solve

x-8=5x

Subtract x from both sides

-8=4x

Divide both sides by 4

x=-2

Next, we need to find a y

Substitute -2 in for x in one of the equations and solve

y=5x

y=5*-2

y=-10

x=-2, y=-10

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At the movies, Tim bought 3 large popcorn buckets and 2 small drinks for $21. Lisa bought 2 large popcorn buckets and 4 small dr

fiasKO [112]

Answer:

becasue the the popcorn is $5 and the drinks are $3

4 0

3 years ago

Read 2 more answers

A football stadium splits ticket sales in ratio of 3 : 4 between the away team and the home team. The home team make £36,000. Wh

Naddika [18.5K]

<h3>Answer is 63,000 pounds</h3>

The ratio 3:4 means for every 3 pounds made in away team tickets versus home team tickets. Multiply both sides by 9000 to have that 4 turn into 36000. The ratio 3:4 will then turn into 27000:36000

With this new ratio, we see that the away team pulls in 27000 and the home team pulls in 36000. Add the two amounts to get the final answer

27000+36000 = 63000

------------

We could alternatively add 3 and 4 (from the ratio 3:4) to get 3+4 = 7. Then multiply by that same scale factor 9000 getting 9000*7 = 63000.

5 0

3 years ago

Lao is thinking of buying a fish tank. Tank A has a base area of 530 square centimeters. Which fish tank has the greater volume?

tatuchka [14]

Answer:

The volume of tank B is 33.7 cubic centimeters greater than the volume of tank A.

Step-by-step explanation:

Volume of tank A 530(18.4)= 9,752

Volume of tank B (26.2)(16.6)(22.5) =9,785.7

Volume of tank B - Volume of tank A 9,785.7 - 9,752 = 33.7

4 0

3 years ago

Inverse Function In Exercise,analytically show that the functions are inverse functions.Then use the graphing utility to show th

Anna [14]

Step-by-step explanation:

We need to show whether

$f^{-1}(x) = g(x)$

$g^{-1}(x) = f(x)$

so we'll do either one of them,

we'll convert f(x) to f^-1(x) and lets see if it looks like g(x).

$f(x) = e^x - 1$

we can also write it as:

$y = e^x - 1$

now all we have to do is to make x the subject of the equation.

$y+1 = e^x$

$\ln{(y+1)} = x$

$x=\ln{(y+1)}$

now we'll interchange the variables

$y=\ln{(x+1)}$

this is the inverse of f(x)

$f^{-1}(x)=\ln{(x+1)}$

and it does equal to g(x)

$g(x)=\ln{(x+1)}$

Hence, both functions are inverse of each other!

This can be shown graphically too:

we can see that both functions are reflections of each other about the line y=x.

4 0

4 years ago

Who can Help me please...

lesantik [10]

Answer:

7+2x=4x 3=13

Step-by-step explanation:

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4 0

4 years ago