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3 years ago

A pair of equations is shown below:

Mathematics

1 answer:

horrorfan [7]3 years ago

4 0

Answer:

A. x=2, y = 7.

B. (2, 7).

Step-by-step explanation:

A. You can eliminate y by subtracting the equations:

y = 8x - 9

y = 4x - 1 Subtract:

0 = 4x - 8

4x = 8

x = 8/4 = 2.

Now substitute for x in the first equation:

y = 8(2) - 9 = 7.

Check in the second equation:

y = 4x - 1

7 = 4(2) - 1 = 7. Check is OK.

B. On the graph they will intersect at the point (2, 7).

They will intersect here because the values x=2 and y=7 satisfy both the 2 equations.

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4 ( 3x - 8 ) = 4 <br>how do i solve this problem

ludmilkaskok [199]

4(3x-8)=4
12x-32=4
12x=36
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3 0

3 years ago

Read 2 more answers

A trapezoid has an area of 95 square meters. If the bases are 7 meters and 12 meters what is the height of the trapezoid

Colt1911 [192]

ANSWER

The is 10 is meters

EXPLANATION

The area of a tra-pezoid can be calculated using the formula;

$Area= \frac{1}{2} \times (sum \: of \: bases) \times height$

We substitute the values to get,

$95= \frac{1}{2} \times (7 + 12) \times height$

$2 \times 95= 19 \times height$

$\frac{190}{19} = height$

$height = 10$

The height is 10 meters.

6 0

2 years ago

Solve the system of equations by substitution.<br> 3/8x + 1/3y = 17/24<br> x + 7y = 8

bixtya [17]

Using the second equation, let’s find x

x + 7y = 8
x = 8 - 7y

Substitute x in the other equation

3/8(8 - 7y) + 1/3y = 17/24
3 - 21/8y + 1/3y = 17/24
-55/24y = -55/24
y = 1

Plug in y in any equation

x + 7(1) = 8
x + 7 = 8
x = 1

x = 1 and y = 1

3 0

2 years ago

HELP!!!!!!!!!<br> Please!

beks73 [17]

Answer:

I believe the answer would be 21xy + 6x^2

3 0

2 years ago

BOIS

sineoko [7]

The event will have 27 tables, with 2 adults and 3 children in each table.

Step-by-step explanation:

The greatest number of tables the planner can set up is determined by finding the greatest common factor in 54 and 81. This is given by;

54 81----------------divided by 3

3 18 27---------------divided by 3

3 6 9---------------divided by 3

3 2 3---------------no common divisor

The greatest number of table will be given by : 3×3×3=27

The number of adults in each table will be 2

The number of children in each table will be 3

Learn More

Greatest common factor : brainly.com/question/13133626

Keyword : greatest number

#LearnwithBrainly

4 0

2 years ago