Ask question

Ask question

All categories

2 years ago

10

Question

1 answer:

Mademuasel [1]2 years ago

6 0

Answer: F

Step-by-step explanation:

This does not have infinitely many solutions (adding the equations, we get a fixed value of x)
This has no solutions (the left hand sides are the same but the right hand sides have different values)
This has one solution (the first equation givess a fixed value for x)
This has no solutions (same reason as 2)
This has one solution (same reason as 3, just the second equation instead of the first)
This has infinitely many solutions (multiplying both sides of the top equation by -2 gives the bottom equation).

You might be interested in

What are the similarities between S waves and surface waves

Nikolay [14]

Both arrive after P Waves.

6 0

3 years ago

What is the exact distance between the point (-2,-1) and the point (6,8)

RUDIKE [14]

The answer is B. Use distance formula...

$d = \sqrt{(6 + 2) {}^{2} + (8 + 1) {}^{2} }$

6 0

3 years ago

Read 2 more answers

18+ 0.50x=12 + 0.75x

Veronika [31]

Answer:

x = 24

Step-by-step explanation:

18 + 0.5x = 12 +0.75 x

18 - 12 = 0.75 x - 0.5x

6 = 0.25 x

24 = x

3 0

2 years ago

Read 2 more answers

Hester sells televisions. She earns a fixed amount for each television and an additional $ 15 if the buyer gets an extended war

tiny-mole [99]

Answer:

$y =mx +bx$

Where y is the total amount earned, m the amount for each extended warranty and b the fixed cost and x the total amount of TVs

For this case the value of x = 16 since we have 16 Tvs with extended warranties and we can do this:

$1200 = 15*16 +16b$

and solving for b we got:

$b= \frac{1200-15*16}{16}= 60$

And then we can conclude that she earns 60 for each TV

Step-by-step explanation:

For this case we can set a linear model like this:

$y =mx +bx$

Where y is the total amount earned, m the amount for each extended warranty and b the fixed cost and x the total amount of TVs

For this case the value of x = 16 since we have 16 Tvs with extended warranties and we can do this:

$1200 = 15*16 +16b$

and solving for b we got:

$b= \frac{1200-15*16}{16}= 60$

And then we can conclude that she earns 60 for each TV

8 0

3 years ago

Y = 2x + 7<br> a) Work out the value of y when x=4<br> b) Work out the value of y when x=-3

creativ13 [48]

A ) y = 2(3) + 7
y = 15

b ) y = 2(-3) + 7
y = 1

6 0

2 years ago