2 years ago

What is the solution to the system of equations? 2x - 2y = 6 7x + y = 19

Mathematics

1 answer:

kari74 [83]2 years ago

7 0

Your answer would be (11/4,-1/4)

You might be interested in

What is parallel to 2x-y=1 and contains (4, -6)? Please show your work!

Contact [7]

$k:\ y=m_1x+b_1\\\\l:\ y=m_2x+b_2\\\\l\ ||\ k\iff m_1=m_2\\\\\text{We have}\\\\k:\ 2x-y=1\ \ \ |-2x\\-y=-2x+1\ \ \ \ |\cdot(-1)\\y=2x-1\to m_1=2\\\\l:\ y=m_2x+b\\\\l\ ||\ k\iff m_2=2\\\\l:\ y=2x+b\\\\\text{The line l contains (4, -6)}\\\\\text{Put the values of coordinates to the equation of line l}\\\\-6=2(4)+b\\-6=8+b\ \ \ \ \ |-8\\b=-14\\\\Answer:\ y=2x-14\to 2x-y=14$

5 0

2 years ago

What is the answer to this? what does a equal?−6(−4+5)=−30+6

Fittoniya [83]

Answer:

I guess it would be 36?

Step-by-step explanation:

8 0

2 years ago

Work out the volume of a cuboid of edge 4cm by 4cm by 7cm

snow_tiger [21]

Volume = 4 * 4 * 7 = 112 cm^3 Answer

8 0

2 years ago

1/3h-4(2/3h-3)=2/3h-6

serious [3.7K]

$\frac{1}{3}h -4(\frac{2}{3}h-3^{(3})=\frac{2}{3}h-6^{(3} \\\\ \frac{h}{3} -4*\frac{2h-9}{3}=\frac{2h-18}{3} \\\\ h-4(2h-9)=2h-18 \\\\ h-8h+36=2h-18 \\\\ -7h+36=2h-18 \\\\ -7h-2h=-18-36 \\\\ -9h=-54 \\\\ \boxed{h=\frac{-54}{-9}=6}$

7 0

3 years ago

Read 2 more answers

The surface area in square units of a cylinder with a volume of 18 cubic units is a function of its radius in units where . What

kupik [55]

Answer:

the height is 0.6367 so the surface area is 68.55

4 0

2 years ago