Mathematics College

2x - y = 8
x - 4y = -3

Answers

Answer 1

Answer:

X = 5

Y = 2

Step-by-step explanation:

y=2x-8

x-4(2x-8)=-3 -> x-8x+32=-3 -> -7x = -35 -> x=-35/-7 = 5

x=5 -> y=2x-8 -> y=2(5)-8=2

Answer 2

Answer:

x=5  y=2

Step-by-step explanation:

2x - Y = 8 X - 4y = -3

Related Questions

For the function F(x)=|6x+4|−2, evaluate F(8).

Answers

Answer:

Answer should be 50.....

Can anyone upload the the solutions of
CLASS 7 LESSON NO - 1 INTEGERS EX 1.2 ALL QUESTION - NCERT
​

Answers

Answer:

https://www.learncbse.in/ncert-solutions-for-class-7-maths-integers-exercise-1-2/

i think thats the one



Consider the reduction of the complex figure with a scale factor of . What is the area of the reduced figure?

(Sorry for the terrible quality photos)

Answers

Answer:

25 mm²

Step-by-step explanation:

The pink figure has dimensions:

42 mm x 28 mm and the area of 1225 mm²

The blue figure has dimensions:

6 mm x 4 mm

The scale factor is the ratio of corresponding sides:

k = 4/28 = 6/42 = 1/7

The area's scale factor is

k² = 1/49

The area of the reduced figure is:

1225*1/49 = 25 mm²

note. It was answered based on the additional information given in the comments (though 41 mm should be 42 mm)

26mm² is area of complex figure.

Answer:

solution:in rectangle

length[l]=6mm

breadth [b]=4mm

area of rectangle=l×b=6×4=20mm²

again in triangle

height[h]=6/2=3mm

base[b]=4mm

area of triangle =1/2 b×h=1/2×3×4=6mm²

total area of composite figure=20mm²+6mm²

=26mm²

Solve the equation f/2+ 9=4 how can you isolate the term f/2?

Answers

Subtract 9 to isolate

For thousands of years, gold has been considered one of the Earth's most precious metals. One hundred percent pure gold is 24-karat gold, which is
too soft to be made into jewelry. Most gold jewelry is 14-karat gold, approximately 58% gold. If 18-karat gold is 75% gold and 12-karat gold is 50% gold,
how much of each should be used to make a 14-karat gold bracelet weighing 300 grams?
How many grams of 18-karat gold needs to be used to make the bracelet?

Answers

The answer is on bitly im about to put the link

giving brainliest !!!

Answers

Answer:

54 cm^2

Step-by-step explanation:

9 cm^2×6 sides=54

Answer:

I think its 54

Step-by-step explanation:

1. The Hamiltons are installing a new pool in their backyard. The scale drawing below represents the new pool, where 1 centimeter represents 5 feet. 4 cm 6 cm If the area of the Hamiltons' backyard is 900 square feet, how many square feet of their backyard will NOT be taken up by the pool? Round your answer to the nearest whole number.​

Answers

Answer:

175

Step-by-step explanation:

Because why would i lie?

The number of square feet of their backyard will NOT be taken up by the pool should be 100 square feet.

Calculation of the number of square feet;

Since 1  centimeter represents 5 feet. 4 cm 6 cm And, the area of the Hamiltons' backyard is 900 square feet.

So here it can be like

4cm (5) = 20ft

6cm (5) = 40ft

Now

20ft : 40ft pool

20(40) = 800 square ft

So,

= 900sq ft - 800sq ft

= 100 square feet

Learn more about area here: https://brainly.com/question/17758676

Pls Help! Write an equation of the line that passes through the point (-2, 5) and is parallel to the line 2x − 3y = 12.


Please do not put a link or I will report you!

Answers

Answer:

[tex]y=\frac{2}{3}x+\frac{19}{3}[/tex]

What are the ordered pairs of the solutions for this system of equations?

Answers

Answer:

( 4, 11 ) , ( - 4, 27 )

Step-by-step explanation:

f(x) = x² - 2x + 3

f(x) = - 2x + 19

x² - 2x + 3 = - 2x + 19

x² - 16 = 0

( x + 4 )( x - 4 ) = 0

[tex]x_{1}[/tex] = - 4

[tex]x_{2}[/tex] = 4

f(x) = [tex]y_{1}[/tex] = - 2( - 4 ) + 19 = 27

[tex]y_{1}[/tex] = 27

f(x) = [tex]y_{2}[/tex] = - 2( 4 ) + 19 = 11

[tex]y_{2}[/tex] = 11

( 4, 11 ) , ( - 4, 27 )

Has any one done this or have an idea what its even asking?

Answers

Answer: Its asking for the combination for the shapes like WXYX (example) ( I think)  just search it up because I cant help much



Step-by-step explanation: j

у
= 5
16. Describe the following variation:
O A. y varies directly as X.
O B. y varies directly as the square of x.
O C. y varies inversely as the square of x.
O D. y varies inversely as x.

Answers

Answer:

I think it might be D

Step-by-step explanation:

*10 POINTS *
find the value of x

x = ___??

Answers

The value is 22 because I took the test

Answer:

[tex]x=-2[/tex]

Step-by-step explanation:

You can create a proportion with the sides and solve for x:

[tex]\frac{SR}{QR} =\frac{TR}{UR}[/tex]

[tex]\frac{20}{24}=\frac{15}{-4x+10}[/tex]

[tex]\frac{5}{6}=\frac{15}{-4x+10}[/tex]

[tex]-20x+50=90[/tex]

[tex]-20x=40[/tex]

[tex]x=-2[/tex]

Find the percent of change. 32 to 28

Answers

Answer:

12.5 %

Step-by-step explanation:

change  = 32 − 28 = 4  pages

Find the surface area of the prism.can someone help fast , I can’t get this

Answers

Answer:

surface area = 84 cm^2

PLS HELP WILL GIVE BRAINLIEST

What percent of the total budget is college savings? Round to the nearest percent.

The budget is: 3,500
The college savings is: $400

Answers

Answer:

8.75%

Step-by-step explanation:

400/3500

Pls help extra points

Answers

Answer:

1

Step-by-step explanation:

mODE IS THE MOST FREQUENT NUMBER.

1 IS THE MOST FREQUEN NUMBER LOL

SORRY FOR CAPS, SOMETHING IS WRONG WITH MY COMPUTER

Answer: 1 is your answer hope this helped and i took a screen shot for ext help

plz make brainly

Step-by-step explanation:

Shawn bought 3 items at the grocery store that cost $3.35, $6.85, and $2.90. After paying the cashier, Shawn received $2.15 in change.

How much did Shawn give the cashier to pay for his purchase?

Answers

Answer:  Shawn payed the cashier $15.25

Step-by-step explanation:

Quick!!!!!!!!!! I don't have long

Answers

Answer:

B

Step-by-step explanation:

CORRECT 100%!!!!!!!!!!!!!!!

Answer:

Answer is b w=5

Step-by-step explanation:

What is the interquartile range of the following data set?
2,7,15, 19, 26, 33, 39, 41, 49, 52
A. 26
B. 30
C. 32
D. 22

Answers

Answer:

26

Step-by-step explanation:

Carlie biked 24 miles in four hours. What was Carlie's average speed in miles per hour?
1) 8 miles per hour

2) 4 miles per hour

3) 6 miles per hour​

Answers

Answer:

6 miles per hour

Step-by-step explanation:

Answer:

6 miles per hour

Step-by-step explanation:

What is the area, in square centimeters, of the trapezoid below? 18.2 cm 9.2 cm 8.3 cm​

Answers

Answer:
113.71 cm^2
Explanation m:
Area= a+b/2 h
18.2 + 9.2/2 •8.3 = 113.71

*20 POINTS* find the value of x ? x = ___

Answers

Answer:

5

Step-by-step explanation:

What is the height of a triangular base of a paperweight with a volume of 96 cubic inches, length is 8 in and with is 6 inches?

Answers

Answer:

4 inches

Step-by-step explanation:

Triangular prism formulas

Volume = 0.5 * b * h * length, where b is the length of the base of the triangle, h is the height of the triangle and length is prism length. area = length * (a + b + c) + (2 * base_area) , where a, b, c are sides of the triangle and base_area is the triangular base area.

How to find the height of a triangle - formulas

area = b * l / 2, where b is a base, l - length.

so l = 2 * area / b/w-width.

Solve

1/2 x 6 x 8 x ? = 96

2 x 96 = 192

192/8 = 24

24/6 = 4

length = 4 inches

What’s the answer to question 1,2,3,4?

Answers

Answer:

1. y=0

2. y=2

3. y=4

4. y=-2(-4)-4

=32

Answer:

y = 2x

x = 0

y = 2*0 = 0

Answer: 0

x = 1

y = 2*1 = 2

Answer: 2

x = 2

y = 2*2 = 4

Answer: 4

y = -2x - 4

x = -4

y = -2*-4  - 4 = 8 - 4 = 4

Answer: 4

Step-by-step explanation:

What is the measure of 162
A. 324°
B. 162°
O C. 81°
D. 72°

Answers

Answer:

81

Step-by-step explanation:

trust me its correct

Answer:

C. 81

Step-by-step explanation:

Just took the test the person is correct

she finds a hotel that charges 84 euros per night, she thinks this will be about £100. Is she right?

Answers

Answer:

she is wrong

Step-by-step explanation:

Using the conversion rate

1 Euro equals  =0.87 Pound sterling

84 euros = x

Cross multiply

1 * x = 0.87 * 84

x = 0.87 * 84

x = 73.08 pounds

Since 84 euros is not up to 100pounds,. Hence she is wrong

find the value of x and of the measure of the angle labeled 3x​

Answers

Answer:

A

Step-by-step explanation:

stay safe and bless

HEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPP

Answers

9514 1404 393

Answer:

cylinder and cone256π ≈ 804.25 m³

Step-by-step explanation:

The figure is a composite of a cylinder added to a cone.

The height of the conical portion is (20 m -14 m) = 6 m. We know that the volume of a cone is 1/3 the volume of a cylinder with the same dimensions. Another way to think of that is the volume of a cone is the same as that of a cylinder of 1/3 the height.

So, this figure has a volume equivalent to that of a 14 m tall cylinder topped by a (6 m)/3 = 2 m tall cylinder. Effectively, we're seeking the volume of a cylinder of radius 4 m and height 16 m.

  V = πr²h

  V = π(4 m)²(16 m) = 256π m³ ≈ 804.248 m³

The volume of the "silo" is 256π ≈ 804.25 m³.

_____

If you use 3.14 for π, you will get 803.84 m³.

SoundCo makes four different models of after-market radios for commercial trucks. Each radio model includes the base radio, a wiring harness, mounting bracket and mounting hardware. For each LD-1 model that SoundCo sells they generate revenue of $229, but incur costs of $89 for the base radio, $10 for a wiring harness, $8 for a mounting bracket, and $2 for mounting hardware. For each LD-2 model that SoundCo sells they generate revenue of $249, but incur costs of $89 for the base radio, $12 for a wiring harness, $10 for a mounting bracket, and $4 for mounting hardware. For each LD-3 model that SoundCo sells they generate revenue of $259, but incur costs of $99 for the base radio, $15 for a wiring harness, $14 for a mounting bracket, and $6 for mounting hardware. For each LD-4 model that SoundCo sells they generate revenue of $279, but incur costs of $109 for the base radio, $18 for a wiring harness, $20 for a mounting bracket, and $8 for mounting hardware. SoundCo management already has orders for 800 model LD-1 radios, and 700 model LD-3 radios that must be met. Management also decided that they will produce no more than 500 model LD-2 radios, as this model has not been popular with the company's customers. SoundCo has limited production capacity, and will not produce more than 2500 total radios. How many radios of each model does SoundCo produce that maximizes profit and meets their production constraints?

Answers

Answer:

SoundCo

Units of radios to produce to maximize profit and meet production constraints:

                                          LD-1          LD-2            LD-3           LD-4  Total

Units to be produced

 to maximize profit          800          500              700            500  2,500

Step-by-step explanation:

a) Data and Calculations:

                                    LD-1          LD-2            LD-3           LD-4

Sales revenue          $229          $249           $259           $279

Base radio cost          $89               89                99             109

Wiring harness             10                12                 15                18

Mounting bracket          8                10                 14               20

Mounting hardware      2                  4                  6                 8

Total costs               $109             $115            $134           $155

Net Income             $120             $134            $125           $124

Units to be produced

 to maximize profit 800              500             700             500

First:

SoundCo must produce 800 and 700 units of LD-1 and LD-3 respectively to meet customer orders.  Given that it has decided not to produce not more than 500 of LD-2, it is left with producing 500 of LD-4 because of the full capacity of 2,500.

2.) What is another way to write 700,562? Select all the ways to write this number, A) (7 +100,000) + (5+ 1,000) + (6 +10) + (2 +1) B) seven hundred thousand, five hundred sixty-two C) 700,000 +500 + 60 + 2 D) 7 hundred thousands +5 hundreds +62 tens. E) 7 hundred thousands +5 thousands + 6 tens + 2 ones​

Answers

Answer:

b,c

Step-by-step explanation:

b is written  in the written form properly and  is is extended using the right place values

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