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Lerok [7]
2 years ago
10

What is the rate of change for the following? (4,5) (2, 15)

Mathematics
2 answers:
Alex2 years ago
6 0

Answer:

-5

Step-by-step explanation:

Given these two points, we can just plug them into the slope formula.

Slope=\frac{y_2-y_1}{x_2-x_1}

\frac{15-5}{2-4}\\\\\frac{10}{-2}  \\\\-5

Evgen [1.6K]2 years ago
3 0

Answer:

-5

Step-by-step explanation:

Rate of Change also slope

Slope = y-y1/x-x1 = tanα = y/x

15-5/2-4 = 10/-2 =-5

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A landscaping business bought 8 rose bushes and 15 daylilies for $193. They went back later and bought 3 more rose bushes and 12
pantera1 [17]

Answer:

Each daylilies  cost $7

Step-by-step explanation:

Step one:

let roses be x

and daylilies be y

so

8x+15y=193--------------1

also

3x+12y=117--------------2

we can solve equations 1 and 2 by substitution

8x=193-15y

x=(193-15y)/8

put x= (193-15y)/8  in 3x+12y=117

3((193-15y)/8)+12y=117

(579-45y)/8+12y=117

579-45y=8(117-12y)

579-45y=936-96y

collect like terms

579-936=-96y+45y

-357=-51y

divide both sides by -51

y=-357/-51

y=7

Hence each daylilies  cost $7

put y=7 in eqn 1

8x+15(7)=193

8x+105=193

8x=193-105

8x=88

x=88/8

x=11

rose cost $8

6 0
3 years ago
In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If Muskan's scores i
Elanso [62]

Answer:

35

Step-by-step explanation:

To find his total score in the quiz, we need to add all the scores he had in successive rounds.

This gives a value of; 25 + (-5) + (-10) + 15 + 10 = 25-5-10+15+10 = 25 + 10 = 35

Thus his total score at the end is 35

3 0
3 years ago
Subtract u from 7, then divide v by the result
KatRina [158]
<span>Subtract u from 7, then divide v by the result</span>
v : (7 - u)
4 0
3 years ago
9 + 4 to the third power x (20-8) / 2 + 6
harkovskaia [24]

1110.5 is the answer and your welcome

5 0
3 years ago
Plz answer asap im goin broke her
Nutka1998 [239]

Answer:

drraaaaaa wild'n out boiii

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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