MATHEMATICS COLLEGE

Using substitution, what is the first step to solve: x=6y+3 and x+2y=5.​

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

Remark

You could do it a very convoluted way or you could do it simply. The simple way, I think, is the one intended. The x on the second equation is sitting by it itself. So is it in the first equation. Put the x from the first equation into the second.

Solution

x=6y+3 ===> x+2y=5.​

6y + 3 + 2y = 5                        First Step

8y + 3 = 5                                Subtract 3 from both sides

8y = 5 - 3                                 Combine

8y = 2                                       Divide by 8

y = 2/8

y = 1/4

============================

x = 6y + 3

x = 6*(1/4) + 3

x = 6/4 + 3

x = 1.5 + 3

x = 4.5

Solution (4.5 , 0.25)
Answer 2
Answer:

Answer:

x= 9/2 y=1,4

Step-by-step explanation:

Hope this helped you! :)

Related Questions

Who can answer this(WITH AN EXPLANATION)will mark brainlest
You are measuring the height of a statue. You stand 17 feet from the base of the statue. You measure the angle of elevation from the ground to the top of the statue to be 61º. Find the height h of the statue to the nearest foot.
Use the Distributive Property to solve the equation.2x - 4(x-3) = -5+2x-3The solution of the equation is .(Type the value of x.)
Please help me.how many observations are in this data set?
Pancake recipe calls for `8` eggs, but Alisha only has `3` eggs.Adjust the amount needed for each ingredient in the table so that the recipe still tastes the same with only `3` eggs.

What is the solution to -4 (2x +6)=-24

Answers

Answer:

x=0

Step-by-step explanation:

Distribute -4

-8x - 24 = -24

Add 24 to both sides

-8x = 0

x=0

Answer:

x=0

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−4(2x+6)=−24

(−4)(2x)+(−4)(6)=−24(Distribute)

−8x+−24=−24

−8x−24=−24

Step 2: Add 24 to both sides.

−8x−24+24=−24+24

−8x=0

Step 3: Divide both sides by -8.

−8x

−8

=

0

−8

x=0

Answer:

x=0

If I wanted the margin of error for the 95% confidence interval to be 1 inch, I should select a simple random sample of size: (assume the population standard deviation = 2.415) A. 5.
B. 7.
C. 23.
D. 39

Answers

We are given with
Confidence interval of 95%. This corresponds to a Z value of 1.96
Margin of error, d = 1 inch
Population standard deviation, σ = 2.415 inch

We can calculate for the sample size using the formula
n = Z² σ² / d²
Substituting,
n = 1.96² (2.415)² / 1²
n = 22.4 ~ 23

Image attached please help!A) which answer choices are true

B) which inequality is shown on the graph?

Answers

C and D : 0 + 3 is less than 16, 13 + 3 is 16, and the others are greater
B : the line goes though the numbers less than 10, and the closed point shows it can be equal to 10.
Hope this helps!

In the first quadrant you start at (7,4) and move 4 units left and 3 units up.

Answers

Answer:

(3,7)

Step-by-step explanation:

(7,4)

Moving left and right relates to x

Moving up and down relates to y

When you move to the left, you subtract

When you move to the right, you add

When moving up, you add

When moving down you subtract

X= 7-4 = 3

x=3

Y= 4+3 = 7

y = 7

(3,7)

What is the measure of

Answers

Answer:

B. 108

Step-by-step explanation:

Find the slope of the line passing through each of the following pairs of points. (−3, 9), (−3, −5

Answers

The formula of a slope:

m=(y_2-y_1)/(x_2-x_1)

We have the points (-3, 9) and (-3, -5). Substitute:

m=(-5-9)/(-3-(-3))=(-14)/(-3+3)=(-14)/(0)\qquad\large{!!!!}\n\n\large\boxed{\text{Division by 0}}!!!

Conclusion: The slope is not exist.

Given line is a horizontal line. Horizontal line has not a slope.

Answer:

Undefined Slope

Step-by-step explanation:

Well, we can first do (-5-9)÷[-3-(-3)].

We get -14/0.

We know anythingn divided by zero is impossible or undefined, so the answer to this is just undefined. If you can't enter it in your homework portal, then ask your teacher. Please don't report this, as I'm correct. Thank you!
Other Questions
HELLPP Determine the constant of proportionality in the situation below.Five bags of candy cost $15.75
Find the unknown angles.​
which of the following is a Quadrilateral which must contain diagonals that are always congruent and must always have 90° angles?
Solve and explain. Sue orders pictures from her photographer. Each picture costs $8. A one-time shipping fee of $7 is added to the cost of every order. The total cost of Sue’s order is $31. How many pictures did Sue order?