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timurjin [86]
2 years ago
5

Need this by midnight please show your work :)

Mathematics
1 answer:
Marina CMI [18]2 years ago
4 0

Answer:

  • See below

Step-by-step explanation:

<h3>Part 1</h3>
  • P = $800
  • r = 2% (since P > $500)
  • I = $100
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 100 = 800*0.02t
  • 0.16t = 1
  • t = 1/0.16
  • t = 6.25 years
<h3>Part 2</h3>
  • P = $100
  • r = 1.5% (since P < $500)
  • I = $50
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 50 = 100*0.015t
  • 0.03t = 1
  • t = 1/0.03
  • t = 33.33 years
<h3>Part 3</h3>
  • P = $10000
  • r = 3% (since P > $5000)
  • I = $750
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 750 = 10000*0.03t
  • 300t = 750
  • t = 750/300
  • t = 2.5 years
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Are the following triangles similar? Justify your answer.
Ber [7]

Answer:

Yes they are similar.

There are three similarity criteria for triangles.

The first one (AAA) , your case, says that two triangles are similar if their corresponding angles are equal.

The second one (SAS) says that two triangles are similar if two sides have lengths in the same ratio and the angles that are included in these two sides are equal.

The third one (SSS) says that two triangles are similar of all of their sides have lengths in the same ratio.

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7 0
3 years ago
model aeroplane is made to a scale of 1 by two of the size of the real plane the area of the wings of the real plane are 40 m sq
4vir4ik [10]

The area of the wings of the model is 100000 square centimeters

<h3>How to determine the model area of the wings?</h3>

The given parameters are:

Scale factor, k = 1/2

Actual area of wings, A = 40 square meters

The model area is calculated as

Model area = Actual area * k^2

This gives

Model area = 40 * (1/2)^2

Evaluate

Model area = 10 square meters

Convert square meters to square centimeters

Model area = 10 * 10000 square centimeters

Evaluate

Model area = 100000 square centimeters

Hence, the area of the wings of the model is 100000 square centimeters

Read more about scale ratios at:

brainly.com/question/16192120

#SPJ1

6 0
2 years ago
P = -2p - 15<br><br> I need help plz. Thanks!
mihalych1998 [28]

Answer: p=−5

Step-by-step explanation:

Step 1: Add 2p to both sides.

p+2p=−2p−15+2p

3p=−15

Step 2: Divide both sides by 3.

3p/3 = −15/3

p=−5

4 0
3 years ago
Read 2 more answers
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