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2 years ago

What is the slope and y-intercept of this line?

Mathematics

2 answers:

Reptile [31]2 years ago

3 0

Y = -3x + 9

-3x is the slope and + 9 is the y intercept

Answer is B

Sveta_85 [38]2 years ago

3 0

Slope is -3
Y-intercept is 9

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How many solutions does the equation 12 (x + 3 ) = 4 (2x + 9 ) +4x have?

Vera_Pavlovna [14]

Answer:

Infinitely many solutions.

Step-by-step explanation:

12(x+3)=4(2x+9)+4x

12x+36=8x+36+4x

12x+36=12x+36

infinitely many solutions

3 0

2 years ago

If an exercise routine requires 24 crunches for every 16 squats, how many squats would need to be done for every 78 crunches? Gr

Angelina_Jolie [31]

Answer:

The correct answer is 52 squats.

Step-by-step explanation:

An exercise routine requires 24 crunches for every 16 squats.

Therefore the routine would require 1 crunch for every $\frac{16}{24}$ squats.

And by the use of unitary method, the routine would require 78 crunches for every $\frac{16}{24}$ × 78 squats = 52 squats.

Thus for every 78 crunches attempted, the exercise routine would requires 52 squats to be done.

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2 years ago

Hey guys please help anything would be helpful at least try

NikAS [45]

I’m in grade 12 and this has me confused lol the wording is weird but my best guess is 180° around point H and then 2 up 5 right

8 0

1 year ago

Two fewer than a doubled number is the same as the number decreased by 38. Find the number. If n is "the number," which equation

Lunna [17]

Answer: n=-36

Step-by-step explanation:

Let the number be n

2 fewer than a doubled number can be written as 2n-2

The number decrease by 38,can be written as n-38

Equate both

2n-2=n-38

Collect like terms

2n-n=-38+2

n=-36

The number is -36

6 0

2 years ago

When Han makes chocolate milk, he mixes 2 cups of milk with 3 tablespoons of chocolate syrup. Here is a table that shows how to

Korvikt [17]

Answer:

Part a) The table shows a proportional relationship between tablespoons of chocolate syrup and cups of milk

Part b) The scale factor is 1.5

Part c) The constant of proportionally for this relationship is 1.5

Part d) The units for the constant of proportionality are tablespoons of chocolate syrup per cups of milk

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line

Let

x ----> the quantity of cups of milk

y ----> the quantity of tablespoons of chocolate syrup

k ---> the constant of proportionality

For y=3, x=2 -----> $k=\frac{y}{x}=\frac{3}{2}=1.5$

For y=12, x=8 -----> $k=\frac{y}{x}=\frac{12}{8}=1.5$

For y=3/2, x=1 -----> $k=\frac{y}{x}=\frac{(3/2)}{1}=1.5$

For y=15, x=10 -----> $k=\frac{y}{x}=\frac{15}{10}=1.5$

therefore

The table shows a proportional relationship between tablespoons of chocolate syrup and cups of milk

The linear equation is

$y=1.5x$

That means----> The the quantity of tablespoons of chocolate syrup is 1.5 times the quantity of cups of milk

The scale factor is equal to the ratio between tablespoons of chocolate syrup and cups of milk. Is equal to the constant of proportionality k

The scale factor is 1.5

The constant of proportionality is 1.5

The units for the constant of proportionality are tablespoons of chocolate syrup per cups of milk

$\frac{tablespoons\ of\ chocolate\ syrup}{cups\ of\ milk}$

3 0

2 years ago