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
BabaBlast [244]
3 years ago
9

Help me again, please. ;w;

Mathematics
1 answer:
Alborosie3 years ago
3 0

5x - 7y =58

y =-x +2


Using the substitution method, replace y in the first equation with the second equation:

5x - 7(-x+2) = 58

Simplify by using the distribution property:

5x - (-7x) - 14 = 58

Simplify by combining like terms:

12x -14 = 58

Add 14 from each side of the equation:

12x = 72

Divide both sides by 12:

X = 72/12

x = 6


Now you have x, replace x in the second equation and solve for y:

y = -x +2

y = -6 +2

y = -4


X = 6, y = -4




You might be interested in
Mrs. Chip bought 2 sheets and a blanket and paid $41. Mrs. Dale bought a sheet and 4 blankets and paid $80.
Katyanochek1 [597]

Answer:

  • Sheet = $12
  • Blanket = $17

Step-by-step explanation:

<u>Let the cost of a sheet be s and cost of a blanket be b</u>

  • 2s + b = 41
  • s + 4b = 80

<u>From the first equation we get:</u>

  • b = 41 - 2s

<u>Substitute in the second equation</u>

  • s + 4*(41 - 2s) = 80
  • s + 164 - 8s =  80
  • 7s = 84
  • s = 12

<u>Then</u>

  • b = 41- 2*12 = 17
6 0
3 years ago
Which is a limitation of using cellulose
Semmy [17]

Answer:

Step-by-step explanation:

The main limitation of using the cellulose is that it is obtained from plant cell and it cannot be used in abundant amount. Although the most abundant form of carbohydrate found is cellulose but we cannot extract it from the plants for using it

3 0
3 years ago
Read 2 more answers
Mrs. Pender shows her students 2 sticks measuring 6 inches and 2 sticks measuring 8 inches. She asks the students to arrange the
Llana [10]

Answer:

Reggies makes sence

Step-by-step explanation:

5 0
3 years ago
Given the function f(x) = -3x2 + 4x + 6, find f(2) and f(3). Choose the statement that is true concerning these two values.
denis23 [38]

Answer:

The value of f(2) is larger than the value of f(3).

Step-by-step explanation:

f(x) = -3x^{2} +4x+6\\f(2) = -3*2^{2} +4*2+6=2\\f(3) = -3*3^{2} +4*3+6=-9\\

3 0
3 years ago
\dfrac{1}{2} - 60\% - 25\% = <br> 2<br> 1<br> ​ <br> −60%−25%
Helen [10]

Answer:

the answer is -85%

.........

7 0
3 years ago
Other questions:
  • If y varies inversely as (x^2-2) and f(3)=1/8. Find f(-1/2)
    11·1 answer
  • Geometry help please 100% correct answer only
    5·1 answer
  • Suppose Mahkah makes a Native American lunch in a pot that is shaped like a right cylinder. If
    11·1 answer
  • –12(x + 3) - 4(5 - 2x) = 20
    9·2 answers
  • What is the sum: (1−5q)+2(2.5q+8)
    10·2 answers
  • I need help with drawing one over two
    6·2 answers
  • Stephen is testing the difference in means between time it takes to travel school in a bus and time it takes to travel to school
    13·1 answer
  • Two people enter a whispering gallery and want to know where they should stand so they can hear the other person's whisper. The
    14·1 answer
  • Help plsssssssssssssssssssssss help me plsssssssssssssssssssssss
    5·2 answers
  • Y varies inversely with x. If y = 75 when x =25, find x when y= 25.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!