All categories

2 years ago

4x + y = -1 4x - 3y = 7 Solve the simultaneous equation. x= y=

Mathematics

1 answer:

Irina18 [472]2 years ago

3 0

Answer:

x(1÷4) y(-2)

Step-by-step explanation:

4x= -1-y

4x- 3y= 7

-1-y-3y=7

y= -2

4x-3 x (-2)=7

x=1÷4

You might be interested in

Hellp me solve this thanks

stellarik [79]

Answer:

c. 10 cm

Step-by-step explanation:

The parallel sides of trapizium are the bases so

base 1(B1) =9cm , base(B2)= 12cm

$area(a) = 105 {cm}^{2}$

the perpendicular distance means the height so lets find the height

area of trapizium= B1 + B2 × h

2

${105cm}^{2}(the \: given \: area) = \frac{9cm(the \: given \: base) + 12cm(the \: given \: base)}{2} \times h$

${105cm}^{2} = \frac{21cm}{2} \times h$

now we crisscross

${105cm}^{2} \times 2 = 21cm \times h$

${210cm}^{2} = 21cm \times h$

$\frac{ {210cm}^{2} }{21cm} = \frac{21cm \: }{21cm} \times h$

h = 10 cm

hope u like it ‍❤️‍‍❤️‍‍❤️‍

For any question comment me

4 0

2 years ago

What is the slope-intercept form of the line passing through the point (2, 1) and having a slope of 4?

patriot [66]

Answer:

1=4(2)-7

Step-by-step explanation:

y=mx+b

b=where it crosses the y-axis

m=slope

1=4(2)-7

6 0

2 years ago

A shipping container is in the shape of a right rectangular prism with a length of 8 feet, a width of 3.5 feet, and a height of

harkovskaia [24]

Answer:

Volume = 8 * 3.5 * 14.5 =

406 cubic feet

.65 pounds / cubic foot * 406 =

263.9 pounds

Step-by-step explanation:

3 0

2 years ago

A square classroom has a wall that is 21 feet long. What is the area of the classroom?

Rasek [7]

Answer and Step-by-Step explaination:

Area =Length time Width

Area= 21*21

Area=441

6 0

2 years ago

Select from the drop-down menus to correctly complete the statement.

Dominik [7]

We are given the expression
5⁹ x 5³
We can solve this using the rule of exponents which is
a^n x a^m = a^(a + m)
Therefore, the answer is
to keep the base and add the exponents
5⁵⁺³ = 5⁸

4 0

2 years ago

Read 2 more answers

4x + y = -1 4x - 3y = 7 Solve the simultaneous equation. x=__ y=__

4x + y = -1 4x - 3y = 7 Solve the simultaneous equation. x= y=