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saul85 [17]
3 years ago
5

Pls answer! i will mark brainliest!

Mathematics
1 answer:
Volgvan3 years ago
3 0

Answer:

3 inches

Step-by-step explanation:

(14+2x) × (15+2x) = 2(14×15)

210 +30x +28x + 4x² = 420

4x² + 58x - 210 = 0

2x² + 29x - 105 = 0

2x² + 35x - 6x - 105 = 0

x(2x + 35) - 3(2x + 35) = 0

(x - 3)(2x + 35) = 0

x = 3, -35/2(not possible)

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Amy tutors math. For each hour that she tutors, she earns dollars.
skelet666 [1.2K]

The equation to find Amy's earning after tutoring for 15 hours is 300 dollars.

<h3>How to find an equation?</h3>

She earn 20 dollars for each hours she tutors.

E = earnings in dollars

H = hours of tutoring

The equation relating E and H are as follows:

E = 20H

Therefore, the equation to find Amy's earning after tutoring for 15 hours is as follows;

E = 20H

E = 20 × 15

E = 300 dollars

Therefore, Amy's tutoring for 15 hours is 300 dollars.

learn more on expression here: brainly.com/question/14492671

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5 0
1 year ago
If p=5x and q=3x-1, show that 2pq=30x²-10x
Georgia [21]

Answer:

<em>Solution in the attachment above..</em>

<h3><em><u>Hope it helps uh. !!!</u></em></h3><h2 /><h2><em><u>Stay</u></em><em><u> </u></em><em><u>Safe</u></em><em><u>!</u></em></h2>

5 0
2 years ago
What is 6w =30;5,6,7 how is it to be solved?
Gennadij [26K]
6w=30; divide 30 by 6 to the w by itself; the answer is 5

3 0
3 years ago
In the crown Court who decides who is guilty
ehidna [41]

Answer:

The

he district judge or jury will.

6 0
3 years ago
Read 2 more answers
Very urgent.... Anyone please help me..<br> I need it with explanation!
nexus9112 [7]

Answer:

  • P(y) = 0.005y² -10y -1000000
  • 3,200,000

Step-by-step explanation:

a) Profit is the difference between revenue and cost.

  P(y) = R(y) -C(y)

  P(y) = (0.005y² +10y) -(20y +1000000) . . . . use the functions for revenue and cost

  P(y) = 0.005y² -10y -1000000 . . . . . profit as a function of y

___

b) Evaluating this function for y=30,000, we get ...

  P(30000) = 0.005(30000)² -10(30000) -1000000

  = 3,200,000

The company will have a profit of 3,200,000 from the sale of 30,000 cars.

8 0
3 years ago
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