1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
amm1812
3 years ago
8

Natalie was given a 30 question test. For each correct question she answered she earned 2 points. For every incorrect answer she

lost 1 point. Her final score was 54 points. The system of equations descibes the relationship between thw number of questions she answered correctly and the number of questions she answered incorrectly. Part of the solution of the equations is y=2. x+y=30 2x-y=54. The answers are the number of points Natalie lost from questions she answered incorrectly, the number of questions Natalie answered incorrectly, the number of points Natalie earned from questions she answered correctly, the number of questions Natalie answered correctly.
Mathematics
1 answer:
Alika [10]3 years ago
3 0

Answer:

2x-y=54

2x - 2 = 54

2x -2 + 2 = 54 + 2

2x = 56

2/2x = 56/2

x = 28

Step-by-step explanation:

y=2

x+y=30

2x-y=54

2x - 2 = 54

2x -2 + 2 = 54 + 2

2x = 56

2/2x = 56/2

x = 28

You might be interested in
Tell how you knew whether to select a.m. or p.m.
Darya [45]

Answer:

You know if it is day time or night time

Step-by-step explanation:

8 0
3 years ago
Identify the equation in slope-intercept form for the line containing the point (-4,1) and (2,3)
oksano4ka [1.4K]

Answer:

The point slope formula is

(y−y1)=m(x−x1)

Where m = the slope calculated as y2−y1x2−x1

(x1,y1)(x2,y2)

(-4 , 1) (-2 , 3)

Solve for the slope

m = 3−1−2−(−3) = 21 = m = 2

(y−3)=2(x−(−2)) Plug in known values.

y−3=2(x+2) Simplify signs

y−3=2x+4 Use Distributive property

y=−2x+4+3 isolate the y variable

answer (y = −5x+7 ) Simplify

7 0
3 years ago
4 = (8, 2)<br> y =(-1,-3)
den301095 [7]
What do you want me to find
6 0
3 years ago
Read 2 more answers
270 is ninety percent of what number ?
harina [27]
The correct answer is 300.
6 0
3 years ago
N is an integer.<br> Write the values of n such that -15 &lt; 3 ≤ 6<br><br> Help please ❤️❤️
Alex17521 [72]

Answer:

-4,-3,-2,-1,0,1

Step-by-step explanation:

First, doublepound and simplify it.

-15<3n

3n<6

Solve:

-5<n

n<2

Compound:

-5<n<2.

So the values are -4,-3,-2,-1,0,1

Hope this helps plz hit the crown :D

8 0
3 years ago
Read 2 more answers
Other questions:
  • A + 4, for a = 32<br> Please help!
    11·1 answer
  • Evaluate lal - Ibl, given a = 5, b = -3, and c = -2.<br>a. 2 b. 3 c. 7 d. 8​
    15·1 answer
  • Which coupon will save Johnny more money on a crystal sculpture originally priced at $585.00 take $150.00 off or 30% off
    7·1 answer
  • Solve for all possible values of x.<br> Vx+7-11=2<br> Ox= 6<br> O x = 20<br> Ox= 162<br> Ox = 169
    5·1 answer
  • Elsa, Keith, and Lamar sent a total of 68 text messages during the weekend. Keith sent 8 more messages than Elsa. Lamar sent 2 t
    10·1 answer
  • PLEASE PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·2 answers
  • What does changing the k variable do to the graph of a quadratic function
    5·1 answer
  • Find the Slope of the Graph
    7·2 answers
  • The area of the parallelogram below is ____ square meters.
    10·1 answer
  • SOMEONE HELP ME FAST!!!!!!!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!