3 years ago

Solve the simultaneous equations 4 x + y = 17 3 x + y = 15

1 answer:

8 0

I think 4 x 3 + 5 =17 and 3 x 4 + 3 = 15 I am not sure but I think this is it

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patriot [66]

Angle 3 = angle 7 [alternate angles]
=> 4x+1 = 2x + 21
=> 4x-2x = 21-1
=> 2x = 20
=> x = 20/2
=> x = 10

7 0

4 years ago

OlgaM077 [116]

Do you have a diagram i can see?

4 0

4 years ago

Alekssandra [29.7K]

#7:

It means to solve for y.

#8:

We can write:

l = w + 2

Because it says the length is 2 more than the width.

3 0

3 years ago

zhenek [66]

Answer:

I believe the answer is D, but im not quite certain, let me know if im wrong. Hope this helps!

Step-by-step explanation:

8 0

4 years ago

ANTONII [103]

Answer:

$x=(+/-)\frac{\sqrt{10}}{4}$

Step-by-step explanation:

we have

$8x^{2}-3=2$

adds 3 both sides

$8x^{2}=2+3$

$8x^{2}=5$

Divide by 8 both sides

$x^{2}=5/8$

square root both sides

$x=(+/-)\sqrt{\frac{5}{8}}\\ \\x=(+/-)\frac{\sqrt{5}}{2\sqrt{2}} \\ \\x=(+/-)\frac{\sqrt{10}}{4}$

5 0

3 years ago