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Elena L [17]
3 years ago
8

13x + 6y = -30

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0
The answer is d, (-2.5,0.75)
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The linear function graphed below represents the value of a comic book since Lucy purchased it. What was the value of the comic
zhuklara [117]

Answer:

C. $25

Step-by-step explanation:

We will find,

The slope of the function using \frac{y_{2}-y_{1}}{x_{2}-x_{1}}.

Taking the points (1,40) and (2,55).

Slope = \frac{55-40}{2-1}

i.e. Slope = \frac{15}{1}

i.e. Slope = 15

Substituting the slope and point (1,40) in the equation y=mx+b,

We have, 40=15\times 1+b

i.e. b=40-15

i.e. b= 25

Thus, the equation of the linear function is y=15x+25.

<em>This linear function represents the cost of the comic book since Lucy purchased it, where x= years.</em>

So, the initial value of the comic book is when x= 0.

So, y=15\times 0+25 i.e. y= 25

Hence, the cost of the book when Lucy purchased it was $25.

8 0
3 years ago
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Paint is red : blue in a ratio of 2 : 4. if 5 litres of red is used how much blue is used
dlinn [17]
10 liters of blue

Hope this helped








5 0
3 years ago
Read 2 more answers
A carnival charges $6 for admission and $2.50 per ride. You have $50 to spend at the carnival. Which of the following inequaliti
Firdavs [7]

Answer:

6+2.5r\leq 50

Step-by-step explanation:

Hi!

The options regarding the inequalities are not listed, though we can still proceed to write the inequality.

From the problem statement you cannot spend more than $50

and you are charged admission fee of $6 flat

a ride cost $2.50 per ride

the number of rides is given as r

yet in all you must not go beyond your limit

Therefore the inequalities can be presented as

6+2.5r\leq 50

4 0
3 years ago
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Marie plants 12 packages of vegetable seeds in a community garden. Each package costs $1.97. What is the total cost of the seeds
umka21 [38]

Answer:

$23.64

Step-by-step explanation:

Each package of seeds cost $1.97, and Maire bought and planted 12 packages. You would do 12 x 1.97 to get 23.64

8 0
3 years ago
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A cube has edges measuring 9 inches each find the volume
LUCKY_DIMON [66]
The formula for the volume of a cube is s^{3}, where s is the side length. Then, just do 9 to the third power, or 9*9*9, which equals 729.
4 0
3 years ago
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