X-4y=16
5x+4y=8 Math math math

X-4y=165x+4y=8 Math Math Math

Answers

Answer 1

Answer:

(4,-3)

Step-by-step explanation:

x-4y=16

5x+4y=8

find x for one equation

x=4y+16

Now plug this into the other equation

5(4y+16)+4y=8

20y+80+4y=8

24y=-72

y=-3

x=4

Answer 2

Answer:

y=-3

x=4

Step-by-step explanation:


Related Questions

1. 3/4 + 1/3 =
2. 1/6 + 2/3 =
3. 3/8 + 1/4 =
4. 1/3 + 2/5 =
5. 1/8 + 3/4 =
6. 2/5 + 7/10 =
7. 1/6 + 1/3 + 3/4 =
8. 1/10 + 3/10 + 3/5 =
9. 3/8 + 5/5 + 1/2 =
Solve
10. Lisa swam 3/8 of a mile in the morning and 5/16 of a mile in the afternoon. How far did she swim?

Answers

Answer:

1. 3/4 + 1/3 = 1 1/12

2. 1/6 + 2/3 = 5/6

3. 3/8 + 1/4 = 1/4

4. 1/3 + 2/5 = 11/15

5. 1/8 + 3/4 = 7/8

6. 2/5 + 7/10 = 1 1/10

7. 1/6 + 1/3 + 3/4 = 1

8. 1/10 + 3/10 + 3/5 = 1

9. 3/8 + 5/5 + 1/2 = 7/8

10. 11/16

Step-by-step explanation:

Two triangles are cut from a rectangle to form a trapezoid. What is the ratio of the area of the trapezoid to the combined area of the triangles? A 18:54 C 54:18 B 18:72 D 72:18 12 in group of students is painting a background piece​

Answers

The image showing the trapezoid is missing, so i have attached it.

Answer:

C 54:18

Step-by-step explanation:

Formula for area of trapezoid is;

A_trap = ½(sum of parallel sides) × height = ½(12 + (12 - (3 + 3))) × 6

A_trap = ½(12 + 6) × 6

A_trap = 54 in²

Combined area of triangle:

A_tria = 2 × ½ × 3 × 6 = 18 in²

Thus;

A_trap:A_tria = 54 in²:18 in² = 54:18

The image showing the trapezoid is missing, so i have attached it.

Answer:

C 54:18

Step-by-step explanation:

Formula for area of trapezoid is;

A_trap = ½(sum of parallel sides) × height = ½(12 + (12 - (3 + 3))) × 6

A_trap = ½(12 + 6) × 6

A_trap = 54 in²

Combined area of triangle:

A_tria = 2 × ½ × 3 × 6 = 18 in²

Thus;

A_trap:A_tria = 54 in²:18 in² = 54:18

arianna read a total of 24 books in 6 weeks. How many books will she read in 36 weeks at the same rate?

Answers

Answer:

216

Step-by-step explanation:

if she reads 24 books in 6 weeks

you do 36x6

which is 216

consider the line y=6/7x-7

find the equation of the line that is perpendicular to the line and passes through the points (6,3)

find the equation of the line that is parallelto the line and passes through the points (6,3) ​

Answers

Answer:

y = -7/6x + b

Step-by-step explanation:

Perpendicular lines require the reciprocal of the slope and opposite sign to the original slope. Then, you substitute the x and y coordinates into the equation to find the y-intercept. Done.

y = 6/7x -7     (6,3)

y = -7/6x + b

3 = -7/6(6) + b

3 = -7 + b

7     7

10 = b

y = -7/6x + b

Answer:

see below

Step-by-step explanation:

If two lines are perpendicular to each other, they have opposite slopes.

The first line is y = 6/7x. Its slope is (6/7). A line perpendicular to this one will  have a slope of -7/6.

Plug this value (-7/6) into your standard point-slope equation of y = mx + b.

y = -7/6x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (6, 3). Plug in the x and y values into the x and y of the standard equation.

3 = -7/6(6) + b

To find b, multiply the slope and the input of x (6)

3 = -42/6 + b

3 = -7 + b

Now, add 7 to both sides to isolate b.

10 = b

Plug this into your standard equation.

y = -7/6x + 10

This equation is perpendicular to your given equation (y = 6/7x -7) and contains point (6, 3)

If two lines are parallel to each other, they have the same slope.

The first line is y = 6/7x - 7. Its slope is (6/7). A line parallel to this one will also have a slope of 6/7.

Plug this value (6/7) into your standard point-slope equation of y = mx + b.

y = 6/7x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (6, 3). Plug in the x and y values into the x and y of the standard equation.

3 = 6/7(6) + b

To find b, multiply the slope and the input of x (6)

3 = 36/7 + b

Now, subtract 36/7 to both sides to isolate b. To make this easier to visualize, convert 3 to have a denominator of 7.

21/7 - 36/7 = b

-15/7 = b

Plug this into your standard equation.

y = 6/7x - 15/7

This equation is parallel to your given equation (y = 6/7x - 7) and contains point (6, 3)

Hope this helps!

Use this model to calculate
3/8 times 2/6
A.16/18 B.13/24 C.6/48 D5/48

Answers

Answer:

Step-by-step explanation:

i do not see any model, but the answer is

3/8*2/6=6/48

The solution of the expression 3/8 times 2/6 is,

⇒ 6/48

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

The expression is,

⇒ 3/8 times 2/6

Now, We can simplify as;

⇒ 3/8 times 2/6

⇒ 3/8 × 2/6

⇒ 6/48

Thus, The solution of the expression 3/8 times 2/6 is,

⇒ 6/48

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ3

OIGAN ME AYUDAN CON ESTO AUQUE SEA PLIS ​

Answers

Answer:

son 2 sucesiones si ves u a va subiendo y otra ba bajando

what's 6 to the power of 900?​

Answers

Answer:

5400

Step-by-step explanation:

6x900 =5400 this is the correct answer

5400 is the correct answer

**100 points**
Which of the following is being constructed in the image?
A. a line parallel to a given line through a point, not on the line
B. a line perpendicular to a given line through a point not on the line
C. a line segment that is congruent to a given segment
D. a perpendicular bisector of a line segment

Answers

Alright, sorry for possibly wasting the answer, but its either D or B. i think its D, because its a bisector of the line segment, but B reads that it IS perpendicular, but on points not the line. You can rule out which one of the two it is, i would suggest asking a teacher for help or waiting for a better and more reliable answer.

Sorry if this doesn't help, if it does could I have Brainliest? Bless you, have a nice day.

Answer:

D

Step-by-step explanation:

At a basketball game, a team made 54 successful shots. They were a combination of 1- & 2- point shots. The team scored 90 points in all. Write and solve a system of equations to find the number of each type of shot Equation 1: ______________________ Equation 2: ______________________ 1-point shots: _________ 2-point shots: _________

Answers

Answer:

Your answer is 31 for 1 shot points, and 45 for 2 shot points.

Step-by-step explanation:

Convert the angle from radians to degrees.​

Answers

Answer:

first go to a diffrent site

Step-by-step explanation:

673. Решите уравнения:
1) x: 5,8 = 365;
3) x: 8,1 = 0,15;
2) x : 8,4 = 2,3;
4) x: 0,22 = 4,9.​

Answers

Answer:1 ) x: 5.8 = 365

Step-by-step explanation:

x = 365 × 5.8

x = 2117

2117: 5.8 = 365

2) x: 8.4 = 2.3

x = 2.3 × 8.4

x = 19.32

19.32: 8.4 = 2.3

3) x: 8.1 = 0.15

x = 0.15 X 8.1

x = 1.215

1.215: 8.1 = 0.15

4) x: 0.22 = 4.9

x = 4.9 x 0.22

x = 1.078

1.078: 0.22 = 4.9

ORDER OF OPERATIONS
14 + 28 ÷ 4 − 2*4=
(64 + 6) ÷ 5 − 3*2=
(27 − 7) ÷ 2*2 =
5*2 × (20 ÷ 5) =

Answers

Answer:

pmdas perenthisis multiply divide add subtract

Step-by-step explanation:

Answer: 1. 13

2. 8

3. 20

4. 40

Step-by-step explanation:

Which of the following equations represents a nonlinear function?

A.
y = x2 + 5

B.
8x – 4y = 12

C.
y = -4

Answers

B (8x-4y=12) is the answer
B is the correct answer

write an expression to express y in terms of x use your equation to complete the table
PLS HELPPPP QUICKLYYYY

Answers

Answer:

The answer is 1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

x - 5 = y

6 - 5 = 1

Hope that helps!

I really need help please answer would help a lot

Answers

Answer:

z=13

Step-by-step explanation:

The sum of the two angles is 90 degrees

2z+5   + 5z-6  = 90

Combine like terms

7z-1 = 90

Add 1 to each side

7z-1+1 = 90+1

7z = 91

Divide each side by 7

7z/7 = 91/7

z =13

Answer:

5

Step-by-step explanation:

i had my teacher help me with I am on a one on one zoom

Complete each ratio table.
28
42
56
3.5
14
112.8
56.4
14.1
2,820
1,410

Answers

Answer: i don’t know

Step-by-step explanation:

Answer:34

Step-by-step explanation:

Find the unit rate. Enter your answer as a mixed number. A fertilizer covers 5/6 square foot in 1/2 hour

Answers

Answer:

1.67square foot/hr

Step-by-step explanation:

If a fertilizer covers 5/6 square foot in 1/2 hour, then;

5/6 square foot  = 1/2 hour

To determine the unit rate, we will say;

x square foot = 1 hr

Divide both expressions

5/6x = 1/2

5 * 2 = 6x

10 = 6x

x = 10/6

x = 1.67square foot/hr

Hence the unit rate is 1.67square foot/hr

A researcher wants to determine whether the number of minutes adults spend online per day is related to gender. A random sample of 315 adults was selected and the results are shown below. Find the expected frequency for the cell E2,2 to determine if there is enough evidence to conclude that the number of minutes spent online per day is related to gender. Round to the nearest tenth if necessary. Gender| 0-30| 30-60| 60-90| 90+ Male| 23|35|76|46 Female|31|42|46|16

Answers

Answer:

The expected frequency for the cell E2,2 is = 33

Step-by-step explanation:

The given data is

Gender               | 0-30| 30-60| 60-90| 90+       Totals

Male                    | 23    |    35   |   76    |  46        180

Female               |   31   |    42   |   46    |  16         135    

Totals                    54         77        122    62          315  

The expected frequency for the cell E2,2 is :

Expected for the (30-60 box for females)   =  Total of (30-6)/ (total )* females

                                                                      = ( 77/315)135= 33

Here p= 77/315 and n= 135

therefor X= pn = 33

χ²=  (33-42)²/33= 2.455  ( for the single value of E2,2=33)

Expected for the (30-60 box for males)   =  Total of (30-6)/ (total )* males

                                                                      = ( 77/315)180= 44

χ²=  (44-42)²/44= 0.09

The critical region is  χ² (0.05) 3 ≥  χ²= 11.34

Let the null and alternate hypothesis be

H0:the number of minutes spent online per day is not related to gender

against

Ha: the number of minutes spent online per day is related to gender

The single value of χ² for E2,2 = 2.45 is less than the critical value of 11.34.  

this equality contains a viable 3(23+18)<6a

Answers

[tex]3(23+18) < 6a \\ 41 < 2a \\ a > 41/2\implies a > 20.5[/tex]

Hope this helps.

Answer: a >41/2

Step-by-step explanation: Step 1: Simplify both sides of the inequality.

123<6a

Step 2: Flip the equation.

6a>123

Step 3: Divide both sides by 6.

6a/6>123/6

a>41/2

MATH HOMEWORK WHO CAN ANSWER

Answers

Answer:

its the 3 one

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

A. [tex] \angle 4 \: and \angle 6[/tex] - - - (same side interior angles)

B. [tex] \angle 5 \: and \angle 8[/tex] - - - (vertical angles)

C. [tex] \angle 2 \: and \angle 6[/tex] - - - (corresponding angles)

D. [tex] \angle 4 \: and \angle 5[/tex] - - - (alternate interior angles)

Hurry I need help
142 is what percent of 596?

(Write your answer as a percent rounded to the nearest tenth of a percent. Include the % on your answer.)

Answers

Answer:

Step-by-step explanation:

142/596 ≅ 0.238 = 23.8%

[tex] \frac{142}{596} \times 100[/tex]

= 23.8255....

= 23.8%

What is the volume?
7 mm
7 mm
1 mm

Answers

Answer:

(7)(7)(1)=49 mm^3

Step-by-step explanation:

Answer:

49mm³

Step-by-step explanation:

[tex]v = 7mm \times 7mm \times 1mm = 49m {m}^{3} [/tex]


The Chicago Bears
finished their 2020-21
regular season winning
8 of their 16 games.
What is the ratio of
their wins to losses?

Answers

Answer:

I believe the answer is 8 to 8 (8/8) or 1

Step-by-step explanation:

16-8=8

Wins= 8

Loses= 8

Ratio= 8/8

8/8= 1

The answer depends how the question asks for it, so its either 8 to 8, or 1

8:8 8 wins to 8 losses since 8 out of 16 games were won

IS THERE ANYONE THAT WILL HELP WITH THIS PROBLEM AND BRAINLLEST FOR CORRECT PEOPLE
Segment FG is shown. Point F is located at (−5,−4). Point G is located at (3,−4).

Answer the question below.

Answers

Answer:

the midpoint is at (-1,-4)

Answer:

-1, -4

Step-by-step explanation:

find the middle of the segment

One fifth of the sum of 3 and a number

Answers

Answer:

1/5(x+3)

Step-by-step explanation:

That is, assuming the number=x

HELPP I WILL GIVE BRAINLEIST!! PLSSSSS PLSSSSSSS

Answers

Answer:

x = 3  &&  y = - 1

Step-by-step explanation:

Just solving the two equations

the first equation

y = 4/3 x +3

y  - 4/3 x = 3  ..............................................(1)

the second equation

y = -2/3x -3

y + 2/3 x = -3  ..............................................(2)

by substracting 2 from 1

-4/3x - 2/3x = -6

divide by -1

4/3x +2/3x = 6

6/3x = 6

2x = 6

x= 3

then subsititute by value x in any of given eqautions  

Which data set is the most spread from its mean?
14, 26, 24, 28
22, 16, 18, 36
22, 28, 20, 22
21, 19, 27, 25

Answers

Answer:

Tha mean is 23 which means there is no answer:)

14, 26, 24, 28: still 23

22, 16, 18, 36:STILL 23

22, 28, 20, 22: 23

21, 19, 27, 25: STILL 23

Answer:

the answer is B

Step-by-step explanation: each number on a c and d is 7-5 away from 23 but b has 36 which is 13 away from 23 and in all is the farthest plz mark brainlest

Please help!

6:2(1+2)=??

Answers

[tex]6 \div 2(1 + 2) = 9[/tex]

Explanation :

[tex]6 \div 2(1 + 2)[/tex]

[tex] = 3(3)[/tex]

[tex] = 9[/tex]

Your brother is going away to college, so you no longer have to share a bedroom. You decide to redecorate a wall by
hanging two new posters on the wall. The wall is 14 feet wide and each poster is four feet wide. You want to place the
posters on the wall so that the distance from the edge of each poster to the nearest edge of the wall is the same as the
distance between the posters, as shown in the diagram below. Determine that distance.
14 Feet
4 Feet
4 Feet

Answers

Answer:

2 feet apart each

Step-by-step explanation:

Find the area of a rectangle with a length of
14 ft and width of 28 ft.

Answers

Answer:

392 ft^2

Step-by-step explanation:

area = length * width

a = lw

392 = 14 * 28

Don't forget the unit is ft^2 since we are finding the area of a 2-dimensional shape in feet!

Answer:

Step-by-step explanation:

the area of a rectangle is L*W

A=14*28=392 ft^2

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