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
zmey [24]
4 years ago
12

(4x = y - 1 (6x - 2y = -3 substitution

Mathematics
2 answers:
agasfer [191]4 years ago
8 0

Hey there! :)

Equation 1) 4x = y - 1

Equation 2) 6x - 2y = -3

We want both equations to match in a sense where both x & y are on the same side of the equal sign. To achieve this, simply subtract y from both sides in equation 1.

This will leave us with : 4x - y = -1

Now, line up the equations with one another.

1) 4x - y = -1

2) 6x - 2y = -3

Now, multiply 2 to ALL of equation 1.

2(4x - y = -1)

Simplify.

8x - 2y = -2 → We'll call this new equation 3. Now, line up equation 3 with equation 2.

6x - 2y = -38x - 2y = -2

Subtract equations from one another.

-2x = -1

Divide both sides by -2.

-2x ÷ -2 = -1 ÷ -2

Simplify.

x = 1/2

Now, plug in 1/2 for x into our first equation.

4x - y = -14(1/2) - y = -1

Simplify.

2 - y = -1

Subtract 2 from both sides.

-y = -1 - 2

Simplify.

-y = -3

Divide both sides by -1.

y = 3

So, our answer is :  x = 1/2, y = 3 OR (1/2, 3)

~Hope I helped!~

ZanzabumX [31]4 years ago
7 0

Answer:

x=1/2, y=3. (1/2, 3).

Step-by-step explanation:

4x=y-1

6x-2y=-3

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

y=4x+1

6x-2(4x+1)=-3

6x-8x-2=-3

-2x-2=-3

-2x=-3+2

-2x=-1

2x=1

x=1/2

4(1/2)=y-1

4/2=y-1

2=y-1

y=1+2=3

You might be interested in
A: 42.4<br> B: 80.2<br> C: 92.8<br> D: 101.6
Vlad1618 [11]

Answer:

B. 80.2 square inches

Step-by-step explanation:

This figure is a composite figure made up of two rectangles (see attachment).

The area of a rectangle is denoted by: A = lw, where l is the length and w is the width.

In the top rectangle, the length is 3 and the width is 10.2, so A = 3 * 10.2 = 30.6 square inches.

The length of the bottom rectangle is 8 and the width is 6.2, so the area is A = 8 * 6.2 = 49.6 square inches.

Add these together: 30.6 + 49.6 = 80.2 square inches.

6 0
3 years ago
Read 2 more answers
The large square below has a side length of 8 inches, and the smaller white square inside the large square has a side length of
iVinArrow [24]

Answer:

\frac{15}{16}

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Find the area of the large square

A=8^2=64\ in^2

step 2

Find the area of the smaller white square

A=2^2=4\ in^2

step 3

Find the area of the blue region

Subtract the area of the smaller white square from the area of the larger square

64-4=60\ in^2

step 4

Find the probability

we know that

To find out the probability that a point chosen at random is in the blue region, divided the area of the blue region by the area of the larger square

so

\frac{60}{64}

Simplify

\frac{15}{16}

7 0
4 years ago
11. Suppose you buy 1 ticket for $1 out of a lottery of 1,000 tickets where the prize for the one winning ticket is to be $500.
erastovalidia [21]

Answer:

-50 cents

Step-by-step explanation:

The "Winnings" random variable has values -1 and 499

The associated probabilities are P(-1)= 999/1000; P(499)=1/1000

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

Expected Value = -1(999/1000) + 499(1/1000) = -500/1000 = -50 cents

6 0
3 years ago
Read 2 more answers
A triangular plot of land has the dimensions shown in the diagram. What is the area of the land
k0ka [10]

its 300 since 20x30 is 600 and 600/2 is 300 so the answer is <em><u>300</u></em>

7 0
3 years ago
You have been invited to be part of the planning committee for the County Fair. In order to be an effective member you will need
elena55 [62]
Firstly let's find the dimension of this large rectangle:(given)

Area of Rectangle = 660 x 66 =43,560 ft²

And we know that 1 acre = 43,560 ft², then each rectangle has an area of 1 acre & the 20 acres will correspond to 20 x 43560 = 871,200 ft²

We know that the 20 acres form a rectangle. We need to know what is their disposition:

1) We would like to know the layout of the rectangles since we have 4 possibilities FOR THE LAYOUTS

Note that W=66 & L=666 = 43,956 ft²/ unit )

lay out shape could be either:(in ft)
1 W by 20 L  (Final shape Linear 66 x 13320 = 879,120) or
2 W by 10 L  (Final shape Stacked  132 x 6660 = 879,120) or
4 W by   5 L  (Final shape Stacked  264 x 3330 = 879,120) or

2) We would like to know the number of participants so that to allocate equal space as well as the pedestrian lane, if possible, if not we will calculated the reserved space allocated for pedestrian/visitors)

3) Depending on the shape given we will calculate the visitor space & we will deduct it from the total space to distribute the remaining among the exhibitors.

4) (SUGGESTION) Assuming it's linear, we will reserve
20ft x 13320 ft = = 266,400 ft² and the remaining 612,720 ft² for exhibitors
5) Depending on the kind of the exhibition, we will divide the 612,720 ft² accordingly
6) How can we select the space allocated for each exhibitor:
 the 617,720 ft² could be written as a product of prime factors:
612720 = 2⁴ x 3² x 5 x 23 x 37
If you chose each space will be185 ft² , then we can accommodate up to 3,312 exhibitors.
Obviously you can choose any multiple of the prime factors to specify the area allocated & to calculate the number of exhibitors accordingly





3 0
3 years ago
Other questions:
  • The base of a solid right pyramid is a regular hexagon with a radius of 2x units and an apothem of  units. Which expression repr
    8·1 answer
  • Find the equation of the line.<br> Use exact numbers.
    8·1 answer
  • Determine the slope of line whose equation is 5x+2y=10
    10·1 answer
  • What is a scatter plot?<br> I somewhat know the answer, but I just need to know everything about it
    5·1 answer
  • Prepare a monthly budget (a listing of expected income and expenses) for Amy and one for Jason
    7·1 answer
  • Which of the following is a characteristic of a prepayment penalty?
    15·1 answer
  • There are 20 marbles in a jar. 6 blue marbles, 8 green marbles, 4 red marbles, and 2 yellow marbles. Jackson randomly picked 3 m
    9·2 answers
  • Help ill give brainlest pls
    12·2 answers
  • Find the value of a and b so that f(x)=(x-5)(a㏒ₓ3-b)
    8·1 answer
  • Find the valu of x 8: 10 =x:50​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!