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
julia-pushkina [17]
2 years ago
12

Solve the simultaneous linear equations by using the elimination method​

Mathematics
1 answer:
neonofarm [45]2 years ago
6 0

Answer:

3a -3b= -9

3a - 4b = -5

-------------------

b=-4

4a- 4b= -12

3a - 4b = -5

-------------------

a = -7

You might be interested in
ANSWERS FOR THESE!!!
Mkey [24]

Answer:

Question 23) 12 x 6√3 = 72√3

Question 24) 672 cm³

7 0
2 years ago
Find each percent decrease round to the nearest percent from 145 pounds to 132 pounds
Debora [2.8K]
The nearest percent from 145 pounds to 132 pounds is : 1,1 %
5 0
3 years ago
An example of an addition problem in which you would and would not group the addends different to add
murzikaleks [220]
I dont think so. and you should add and then reseporate the groups.

5 0
3 years ago
HELP!!! URGENT!!! I WILL GIVE BRAINLEIST THING ​
lisov135 [29]

Answer:

Horizontal distance = 0 m and 6 m

Step-by-step explanation:

Height of a rider in a roller coaster has been defined by the equation,

y = \frac{1}{3}x^{2}-2x+8

Here x = rider's horizontal distance from the start of the ride

i). y=\frac{1}{3}x^{2}-2x+8

      =\frac{1}{3}(x^{2}-6x+24)

      =\frac{1}{3}[x^{2}-2(3x)+9-9+24]

      =\frac{1}{3}[(x^{2}-2(3x)+9)+15]

      =\frac{1}{3}[(x-3)^2+15]

      =\frac{1}{3}(x-3)^2+5

ii). Since, the parabolic graph for the given equation opens upwards,

    Vertex of the parabola will be the lowest point of the rider on the roller coaster.

    From the equation,

    Vertex → (3, 5)

    Therefore, minimum height of the rider will be the y-coordinate of the vertex.

    Minimum height of the rider = 5 m

iii). If h = 8 m,

    8=\frac{1}{3}(x-3)^2+5

    3=\frac{1}{3}(x-3)^2

    (x - 3)² = 9

    x = 3 ± 3

    x = 0, 6 m

    Therefore, at 8 m height of the roller coaster, horizontal distance of the rider will be x = 0 and 6 m

6 0
2 years ago
A small fountain holds 38 gallons of water in 4 equal-sized sections.
NemiM [27]
A 38/4
B 9 2/4
C 9 1/2

5 0
3 years ago
Other questions:
  • The difference between the squares of two numbers is 20. three times the square of the first number increased by the square of t
    6·1 answer
  • Please I need help. Don’t understand
    12·1 answer
  • There was 5/8 of pie left in the fridge. Daniel are 1/4 of the leftover pie. How much of pie did he have?
    15·1 answer
  • R^2+15r+56=0 <br> Quadratics factoring
    15·1 answer
  • Question 1)
    13·2 answers
  • What method can be used to prove the triangles below are congruent?
    11·1 answer
  • What is the solution for 7 +2x/5=13
    12·1 answer
  • Is this figure rigid or flexible?
    11·1 answer
  • A home’s value increases at an average rate of 5.5 % each year. The current value is $120,000. What function can be used to find
    13·1 answer
  • Plis help me here :(
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!