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
devlian [24]
3 years ago
14

Solve these two equations using the Addition Method (also known as the elimination method).

Mathematics
1 answer:
Brums [2.3K]3 years ago
4 0

Answer:

(-2, 3)

Step-by-step explanation:

5/2(3/4x + 1/3y = -1/2)

1/2x - 5/6y = -7/2

15/8x + 5/6y = -5/4

19/8x = -19/4

x = -2

1/2(-2) - 5/6y = -7/2

-1 -5/6y = -7/2

-5/6y = -5/2

y = 3

You might be interested in
In a video game, a bird is flung on a sling shot and follows a parabolic path. The path of the bird can be modeled by the equati
umka21 [38]

9514 1404 393

Answer:

  3.61 seconds

Step-by-step explanation:

The bird starts 50 feet in the air, so will come down to a height of 40 feet after 3.61 seconds.

We want to solve h = 40.

  40 = -16t^2 +55t +50

  16t^2 -55t -10 = 0

  t = (55 +√(55^2 -4(16)(-10)))/(2(16)) = (55 + √3665)/32 ≈ 3.61060

The bird will be 40 ft above the ground the first time after about 3.61 seconds.

8 0
3 years ago
mark bought 168 meters of fencing to enclose an area of pasture for his sheep. he plans to use all of the fencing to make a rect
Anika [276]
The two long sides are 63meters and the shorter sides are 21meters.
7 0
3 years ago
Read 2 more answers
PLEASE HELP FASTTT!!!
nirvana33 [79]

Answer:

5 seconds

Step-by-step explanation:

Looking at your function (h(t) = -16t^2 + 48t + 160), I see that the peak height will be 196 feet, and that is achieved in 1.5 seconds.

h(1.5) = -16(1.5)^2 + 48(1.5) + 160

h(1.5) = -16(2.25)+ 48(1.5) + 160

h(1.5) = -36 + 48(1.5) + 160

h(1.5) = -36 + 72 + 160

h(1.5) = 36 + 160

h(1.5) = 196

Going down from that height, it would take 3.5 more seconds, so it would take 5 seconds in total

h(5) = -16(5)^2 + 48(5) + 160

h(5) = -16(25) + 48(5) + 160

h(5) = -400 + 48(5) + 160

h(5) = -400 + 240 + 160

h(5) = -400 + 400

h(5) = 0

8 0
3 years ago
4m 8m find the area asap
timama [110]
0.5*4*8=16 metre square
3 0
3 years ago
Read 2 more answers
What number to the power of 3 equals 27 over 729
Olin [163]

Answer:

x=  1/3 =0.333

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • No multiple choice just solve
    11·1 answer
  • Sarah opens a savings account that has a 2.75% annual interest rate, compounded monthly. She deposits $500 into the account. How
    9·1 answer
  • Which of the following are congruent angles?
    5·2 answers
  • Help me please :).........
    12·1 answer
  • What’s the slope of a line that passes through the points (-3,7) and (-3, 4)?
    11·2 answers
  • Convert fraction 1/40 into a decimal form
    6·2 answers
  • Solve the system by graphing.<br><br> y=1/2x−3<br> y=3/2x−1
    12·1 answer
  • Can someone help me please!!
    13·2 answers
  • Your statement balance is 600.00 You have an outstanding checks for
    15·1 answer
  • Write an equation of the line that passes through the points (3,6) and (4,9)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!