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Tomtit [17]
3 years ago
15

Solve the equation 3y+4x=9 for y.

Mathematics
1 answer:
dalvyx [7]3 years ago
7 0
4x + 3y = 9
4x - 4x + 3y = -4x + 9
               3y = -4x + 9
                3           3
                 y = -1¹/₃x + 3
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What is the area of the rectangle, in square feet?<br>9 ft<br>20 ft​
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Answer:

180 Square Feet

Step-by-step explanation:

For Rectangle:

l = 9 ft

b = 20 ft

Area of Rectangle

= l \times b \\  = 9 \times 20 \\  = 180 \:square \:  feet

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Nicholas borrowed $250 from his parents to buy a video game system. He has agreed to pay them back $15 each week. Which equation
AfilCa [17]

Answer:

p = 250 - 15(w)

Step-by-step explanation:

Original amount: 250

No of weeks to return money:  w

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4 0
3 years ago
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
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