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Viefleur [7K]
3 years ago
6

Marissa’s teacher is offering extra credit for each worksheet turned in. If she receives 10 points for two worksheets and 30 poi

nts for six worksheets, what is the rate of change of the number of points per worksheet?
A) 5 points per worksheet

B) -5 points per worksheet

C) 10 points per worksheet

D) 2 points per worksheet
Mathematics
1 answer:
Helga [31]3 years ago
5 0
It would be 5 points per worksheet because 10/2 = 5 and 30/6 = 5. Hope this helps. Please rate, leave a thanks, and pick a brainliest answer (not necessarily  mine) because it gives you some points back.
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Solve the system of equations<br>y = 4x+1<br>y=2+2x-2​
Natalija [7]

Answer:

x = -1/2 , y = -1

Step-by-step explanation:

Solve the following system:

{y = 4 x + 1 | (equation 1)

{y = 2 x | (equation 2)

Express the system in standard form:

{-(4 x) + y = 1 | (equation 1)

{-(2 x) + y = 0 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{-(4 x) + y = 1 | (equation 1)

{0 x+y/2 = (-1)/2 | (equation 2)

Multiply equation 2 by 2:

{-(4 x) + y = 1 | (equation 1)

{0 x+y = -1 | (equation 2)

Subtract equation 2 from equation 1:

{-(4 x)+0 y = 2 | (equation 1)

{0 x+y = -1 | (equation 2)

Divide equation 1 by -4:

{x+0 y = (-1)/2 | (equation 1)

{0 x+y = -1 | (equation 2)

Collect results:

Answer:  {x = -1/2 , y = -1

5 0
3 years ago
The area of the rectangle is 55 square feet. if its width is 3 1/7 feet, find its length ​
oksian1 [2.3K]

Answer: 17.49 = L  or  17 1/2 = L

Step-by-step explanation:

a = L x W

55 = L x 3 1/7

55 ÷ 3 1/7   3 1/7 ÷ 3 1/7

17.49 = L

     or

17 1/2 = L

(pls mark me brainliest)

(theres a button that says mark brainliest on my answer)

4 0
4 years ago
ASAP WILL MARK BRAINLYEST <br><br><br>answer these two please!
Trava [24]

19.\\y=3x^2\\a=3,\ b=0,\ c=0\\\\\dfrac{-b}{2a}=\dfrac{-0}{2(3)=0\to x=0\\\\3x^2=0\ \ \ \ |:3\\\\x^2=0\to x=0

20.\\y=x^2-x-2\\a=1,\ b=-1,\ c=-2\\\\\dfrac{-b}{2a}=\dfrac{-(-1)}{2(1)}=\dfrac{1}{2}\to x=\dfrac{1}{2}\\\\x^2-x-2=0\\\\x^2-2x+x-2=0\\\\x(x-2)+1(x-2)=0\\\\(x-2)(x+1)=0\iff x-2=0\ \vee\ x+1=0\\\\x=2\ \vee\ x=-1

3 0
3 years ago
PLEASE HELP ASAP!! VERY IMPORTANT!!!!! (NUMBER 15!!)
maria [59]
The answer is c cause the answer is 16,741.55ft^2 and c is the closest to it
5 0
3 years ago
Write x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers. (1 point)
Brut [27]
X² - 6x + 7 = 0
x² - 6x = -7
x² - 6x + 9 = -7 + 9
(x-3)² = 2
7 0
3 years ago
Read 2 more answers
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