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
astra-53 [7]
2 years ago
14

Halla el conjunto solución del siguiente sistema de ecuaciones aplicando el método de reducción: 2x + 3y = 8 x – 5y = 6

Mathematics
1 answer:
AysviL [449]2 years ago
4 0

Answer:

x = 7.535 and y = 0.307

Step-by-step explanation:

Given that,

Two equations,

2x + 3y = 8 ...(1)

x – 5y = 6....(2)

Multiply equation (2) by -2.

-2x + 10y = -12....(3)

Now, adding equations (1) and (2),

2x + 3y -2x + 10y = 8-12

13y = 4

y = 0.307

Put the value of y in equation (2).

x – 5(0.307) = 6

x = 6 + 1.535

x = 7.535

So, the solutions of the given equation are x = 7.535 and y = 0.307.

You might be interested in
What are the answer and steps to a^3 - 3a
tresset_1 [31]

Answer:

3a=3

Step-by-step explanation:

ok there you go

6 0
3 years ago
Heidi spent a total of $60 on clothing items she bought 2 pairs of shorts for 10 dollars each she bought some t-shirts for 4 eac
lisov135 [29]

Answer:

2 pair shorts and for t-shirts and sandals possible cases are  

1 t-shirt and 3 sandals or

4 t-shirts and 2 sandals or

7 t-shirts and 1 sandals.

Step-by-step explanation:

Total money spent by Heidi on the clothing items is $60.

Now , she bought 2 pairs of short for $10 each , so, the money spent on shorts will be $20.

Thus money for other stuffs should be $40.

Let she bought x t-shirts for $4 each , thus money spent on t-shirts will be 4x dollars.

Also let she bought y sandals for $12 each , so money spent on sandals will be 12y dollars .

Thus , 4x + 12y = 40.  (since 40 dollars were remaining for other clothing

                                     items)

So, x + 3y = 10.

So, the possible cases are 1 t-shirt and 3 sandals or

4 t-shirts and 2 sandals or

7 t-shirts and 1 sandals.

7 0
3 years ago
Given that u is the midpoint of on and v is the midpoint of rn select all statements that are true
Ira Lisetskai [31]

Answer:

6,9,15

It's a triple stack

8 0
3 years ago
Factor 200t+83 - 80t2.<br> A. 8t(t - 5)(t + 5)<br> B. 8t(t - 5)2<br> C. -8t(t - 5)(t + 5)
Mashutka [201]

Step-by-step explanation:

8t³-80t²+200t

= 8(t³-10t+25)

= 8t(t²-10t+25)

= 8t(t-5)(t-5)

= 8t(t-5)²

the answer is B.

3 0
3 years ago
During a construction project, heavy rain filled construction cones with water. The diameter of a cone is 12 in. and the height
sergey [27]
Volume of a cone = <span>πr^2(h/3)
r=6
h=27

v = </span><span>π(6^2)27/3
v = </span><span>π (36)(9)

v=</span><span>π324 in. cubed
or 
v=1,017.36 in. cubed </span>
3 0
3 years ago
Other questions:
  • Write the standard form of the line that contains a slope of 2/3 and passes through the point (1,1). Include your work in your f
    15·1 answer
  • When you have two shapes to compare on a coordinate plane, you can determine the scale factor, knowing that the transformation w
    7·2 answers
  • 5/2x=-10 pls someone help
    15·1 answer
  • HELP???
    5·2 answers
  • Write an expression for the calculation double 7, multiply 3 and 1, and then subtract the second number from the first number
    11·1 answer
  • Z = ma for a please help
    14·1 answer
  • You buy items totaling $52.25 with a 6% sales tax. You give the clerk three $20.00 bills. Figure the following amounts:
    9·2 answers
  • HElp me pwetty plzzzzzzzzzz
    11·2 answers
  • Where is the blue dot on the number line?
    13·2 answers
  • List all the factors of 42 from least to greatest. Enter your answer below,
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!