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Bond [772]
2 years ago
11

Solve for y: 9x + 4y = -12 Please help!!!

Mathematics
1 answer:
Lyrx [107]2 years ago
5 0

Answer:

<h2>         y = -⁹/₄x - 3</h2>

Step-by-step explanation:

9x + 4y = -12       {subtract 9x from both sides}

4y = -9x - 12        {divide both sides by 4}

y = -⁹/₄x - 3

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If anyone could help me with this last problem, I would greatly appreciate it.
il63 [147K]

Answer:

From the given information, the value of a is 3 and the measurement of ∠R is 25°

Step-by-step explanation:

For this problem, we have to find the value of a and the measurement of ∠R. We are given some information already in the problem.

<em>ΔJKL ≅ ΔPQR</em>

This means that all of the angles and all of the sides of each triangle are going to be equal to each other.

So, knowing this, let;s find the measurement of ∠R first.

All triangles have a total measurement of 180°. We are already given two angle measurements. We are given that the m∠P is 90° because the small box in the triangle represents a right angle and right angles equal 90°. We are also given that the m∠Q is 65° because ∠Q is equal to ∠K so they have the same measurement. Now, let's set up our equation.

65 + 90 + m∠R = 180

Add 65 to 90.

155 + m∠R = 180

Subtract 155 from 180.

m∠R = 25°

So, the measurement of ∠R is 25°.

Now let's find the value of a.

KL is equal to PQ so we will set up an equation where they are equal to each other.

7a - 10 = 11

Add 10 to 11.

7a = 21

Divide 7 by 21.

a = 3

So, the value of a is 3.

4 0
3 years ago
Twice a number decreased by 8 by 12 is 2 less than half the number what is the number?
natali 33 [55]
Answer:
4
Step-by-step explanation:
with the information given, we can express the equation:

where is the unknown number?
to clear for first we multiply the equation by 2, to eliminate the fraction:

moving all terms with to the left:

and adding +16 to each side:

and finally, dividing by 3

the number is 4.
7 0
3 years ago
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