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
Zarrin [17]
4 years ago
12

Need help plssss to figure out this equation

Mathematics
1 answer:
asambeis [7]4 years ago
7 0

Step-by-step explanation:

-3x+5y=-3

y=2x-2

since the value of y is given we can replace the y with it's value.

-3x+5(2x-2)=-3

-3x+10x-10=-3

7x=7

x=1

y=2-2=0

y=0

You might be interested in
Find fifth roots of z⁵ + 32 = 0 and draw its graph?
Lera25 [3.4K]

Answer:

Step-by-step explanation:

4 0
4 years ago
A carpenter had a piece of wood that was 15 feet in length. If he needs only 10 &five twelfth feet of wood, then how much wo
fredd [130]

Answer:

12.5 feet

Step-by-step explanation:

He only needs 10/12 of a 15 foot long piece of wood. We need to find 10/12 of the length of the wood.

That is:

10/12 * 15 = 12.5 feet

He only needs 12.5 feet of the piece of wood.

7 0
3 years ago
A school wants to build a rectangular playground that will have a diagonal length of 75 yards. How wide can the playground be if
Naddika [18.5K]
A rectangle<span> has two </span>diagonals<span>. Each one is a line segment drawn between the opposite vertices (corners) of the </span>rectangle<span>. By using the Pythagorean Theorem, we can calculate the width. We do as follows:

c^2 = a^2 + b^2
a = sqrt( c^2 - b^2 )
a = 68.74 yards</span>
5 0
3 years ago
Evaluate the expression when a = -6 and c=7.<br> C-8a
daser333 [38]

Answer:

55

Step-by-step explanation:

Given the following question:

c-8a
c=7
a=-6

Substitute and solve by using PEMDAS:

c-8a
7-8(-6)
8\times-6=-48
7--48
7--48=55
=55

Your answer is "55."

Hope this helps.

3 0
2 years ago
Asanji stands at the edge of the top of a tall building and lobs a watermelon up into the air then proceeds to watch it fall to
stiks02 [169]

9514 1404 393

Answer:

  3.6 s

Step-by-step explanation:

This is nicely solved by a graphing calculator. It takes about 3.6 seconds to hit the ground.

__

We notice that the vertical velocity is a multiple of the leading coefficient, so we can solve this by completing the square.

  0 = -4.9(t^2 -2t) +28 . . . . . for h = 0

  28 +4.9 = 4.9(t^2 -2t +1) . . . . . rearrange, add 4.9 to both sides

  32.9/4.9 = (t -1)^2

  1 +(1/7)√329 = t ≈ 3.5912. . . . . square root and add 1

It takes about 3.6 seconds for the watermelon to hit the street.

8 0
3 years ago
Other questions:
  • Find the maximum and minimum values of the function.<br> Y=-cos8x
    5·1 answer
  • Does anyone know this answer?​
    15·1 answer
  • Find the dimensions of a rectangle with area 1,000 m2 whose perimeter is as small as possible. (if both values are the same numb
    10·1 answer
  • Cos (pi/11)+cos (3pi/11)+cos (5pi/11)+cos (7pi/11)+cos(9pi/11)
    13·1 answer
  • How much heavier is a 9 1/8 pound box than a 2 5/6 pound box?
    13·1 answer
  • What’s the correct answer for this?
    7·1 answer
  • Find the scale factor.
    10·2 answers
  • 1. The parallel line needs to intersect the other two sides at their
    15·1 answer
  • Which of these numbers are irrational? A) 4.3 B) -5/9 C) 1.618 D) _/6
    12·1 answer
  • Solve the equation:<br> -5+2ln(3x) = 5
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!