6x + y = 4
X - 4y = 19

Solving systems by substitution

Answers

Answer 1

Answer: 6x+y=4
X-4y=19

You are going to want to take -4y and put it to the other side:
X-4y=19
Which is: x=4y+19
6x+y=4
Now substitute x !
6(4y+19)+y=4
Distribute it
24y+114+y=4
Now combine like terms
25y+114=4
Subtract 114 both sides
25y= -110
Y=-4.4

Now you have y so take either equation and substitute the y
X-4(1.4)=19
X+17.6=19
X=1.4
Y=-4.4

Answer 2

Answer: The answer is x= 1.4 y=-4.4

Related Questions

Data Set 1 has a mean of 120 and a MAD of 4. Data Set 2 has a mean of 132 and a MAD of 3.What can you conclude about the two distributions? Choose exactly two answers that are correct. A.The means-to-MAD ratio is 3. B.The means-to-MAD ratio is 4. C.The distributions are somewhat similar. D.The distributions are different.
PLEASE HELP The table below represents the distance of a car from its destination as a function of time. Time (hour) x Distance (miles) y 0 900 1 850 2 800 3 750 Part A: What is the y-intercept of the function and what does this tell you about the car? (4 points) Part B: Calculate the average rate of change of the function represented by the table between x = 1 to x = 3 and what does the average rate represent? (4 points) Part C: What would be the domain of this function if the car traveled the same rate until it reached its destination? (2 points)
Movie tickets cost $6 for a child and $10 for an adult. A showing of a movie brought in $600 in ticket sales.
What is the value of d
A skier has decided that on each trip down a slope, she will do 2 more jumps than before. On her first trip she did 6 jumps. Derive the sigma notation that shows how many total jumps she attempts from her fourth trip down the hill through her twelfth trip. Then solve for how many total jumps she attempts from her fourth trip down the hill through her twelfth trip.I tried to answer, but I don't really know how to even set it up... :/

The quotient of the opposite of 30 and 6, plus the opposite of 8

Answers

The value of the expression is -13.

what is expression?

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.

Given:

The quotient of the opposite of 30 and 6, plus the opposite of 8

The opposite resemble here the opposite integer.

So,

-30 / 6 + (-8)

=-5 -8

=-13

hence, the value of expression is -13.

Learn more about expression here:

brainly.com/question/14083225

#SPJ2

The quotient of the opposite of 30 and 6, plus the opposite of 8
-30 ÷ 6 + (-8)
-5 + (-8)
-5 - 8
-13

Evaluate the summation of 2 n plus 5, from n equals 1 to 12..

Answers

Given:
2n + 5

n = 1 to n = 12

2(1) + 5 = 2 + 5 = 7
2(2) + 5 = 4 + 5 = 9
2(3) + 5 = 6 + 5 = 11
2(4) + 5 = 8 + 5 = 13
2(5) + 5 = 10 + 5 = 15
2(6) + 5 = 12 + 5 = 17
2(7) + 5 = 14 + 5 = 19
2(8) + 5 = 16 + 5 = 21
2(9) + 5 = 18 + 5 = 23
2(10) + 5 = 20 + 5 = 25
2(11) + 5 = 22 + 5 = 27
2(12) + 5 = 24 + 5 = 29

Sum: 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29 = 216

Rachel works for a clothing store. She is paid $150 every week plus a 10% commission on any clothes that she sells.

Answers

Answer:

$165

Step-by-step explanation:

Rachel works for a clothing store. She is paid $150 every week plus a 10% commission on any clothes that she sells.

Let's find the total amount she is being paid per week

Amount paid originally = $150

Percentage Commission = 10%

Commission = 10% of 150

Commission = 0.1×150

Commission = $15

Total amount paid = originally amount + Commission

Total amount paid = $150+$15

Total amount paid =$165

Hence the amount paid to Rachel okus Commission is $165

Two non-simultaneous events have an equal likelihood of occurring (50%). If the events are independent of each other, what is the probability that they will both occur?

Answers

Answer: Probability that they will both occur is 25%.

Step-by-step explanation:

Since we have given that

There are two non simultaneous events.

Probability of each event = 50%

Since both are independent to each other.

Let A and B be two events.

We need to find the probability that they will both occur i..e P(A∩B).

As we know the rule of independence of events:

$P(A\cap B)=P(A).P(B)\n\nP(A\cap B)=0.5* 0.5\n\nP(A\cap B)=0.25\n\nP(A\cap B)=25\%\n$

Hence, Probability that they will both occur is 25%.

25% should be the answer, let me kno if its correct

Please help? I'll fail if I miss this....Which triangle is similar to triangle SRT? (6 points)

Triangle QRP

Triangle PST

Triangle PQR

Triangle TRP