3 years ago

Solve the equation 6y - 7x = 8 for y.

Mathematics

1 answer:

elena-s [515]3 years ago

3 0

If your solving for y in the problem then
y= 4/3 + 7x/6
Hope that helped :)))

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solve for each variable i don’t need work shown just the answers please thank you very much i have 2 hours to get this done

ale4655 [162]

Answer:

$(a)$

$x = 18.5$

$y = 22.5$

$(b)$

$x = 10$

Step-by-step explanation:

Solving (a):

7x - 19 and 3x + 14 are interior angles.

So:

$7x - 19 + 3x +14 = 180$

Collect like terms

$7x + 3x = 180 - 14 + 19$

$10x = 185$

$x = 18.5$

7x - 19 and 5y - 2 are equal angles --- corresponding angles

So:

$5y - 2 = 7x - 19$

Make 5y the subject

$5y = 7x - 19+2$

5y = 7x -17

Make y the subject

$y = \frac{1}{5} (7x - 17)$

Substitute $x = 18.5$

$y = \frac{1}{5} (7*18.5 - 17)$

$y = \frac{1}{5} (112.5)$

$y = 22.5$

Solving (b):

The triangle is right-angled.

So:

$5x + 3 + 2x + 17 + 90 = 180$

Collect Like Terms

$5x + 2x = 180 - 90 - 17-3$

$7x = 70$

$x = 10$

3 0

3 years ago

In ΔNOP, m ∠ N = ( 9 x + 8 ) ∘ m∠N=(9x+8) ∘ , m ∠ O = ( 4 x + 13 ) ∘ m∠O=(4x+13) ∘ , and m ∠ P = ( 2 x − 6 ) ∘ m∠P=(2x−6) ∘ . Fi

Mashutka [201]

Answer: -0=

Step-by-step explanation:

3 0

3 years ago

Find the measure of angle c

Vlad [161]

Answer:

Roughly 70.29 degrees

Step-by-step explanation:

Equation:

(2x+27)+(2x-11)+3x = 180

7x + 16 = 180

7x = 164

x ~ 23.43

Angle C:

3（23.43)

70.29

4 0

3 years ago

The price of apples went from $1.99 per lb to $3.19 per lb in four years. Find the rate of change of the price of apples.

navik [9.2K]

3.19 - 1.99 = 1.20 increase in 4 years

1.20/4 = 0.30

rate of change is 0.30 per year (30 cents per year)

3 0

4 years ago

Read 2 more answers

What is the solution of the equation?-10 + sqrt x+8 = -4

pantera1 [17]

$D:x+8\geq0\to x\geq-8\\\\-10+\sqrt{x+8}=-4\ \ \ /+10\\\\\sqrt{x+8}=-4+10\\\\\sqrt{x+8}=6\iff x+8=36\\\\x=36-8\\\\x=28\in D$

6 0

3 years ago