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Lubov Fominskaja [6]
3 years ago
6

Please help me solve number 14 and 15

Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0

Answer:

Step-by-step explanation:

Similarity property,

" If the two triangles are similar then their corresponding sides will be proportional."

14). If ΔPQR ~ ΔUVW,

     \frac{PQ}{UV}=\frac{QR}{VW}=\frac{PR}{UW} [Statement}

     \frac{15}{10}=\frac{9}{6}=\frac{6}{4}

     \frac{3}{2}=\frac{3}{2}=\frac{3}{2}  [True}

Therefore, ΔPQR ~ ΔUVW [Theorem - SSS]

15). If ΔFHE ~ ΔDHG,

     \frac{EH}{HG}=\frac{HF}{DH} [Statement]  

     \frac{24}{6}=\frac{36}{9}

     4 = 4

Therefore, ΔFHE ~ ΔDHG [Theorem - AA]

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Tom will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of and costs an additiona
11111nata11111 [884]

Complete question :

Tom will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $57.98 and costs an additional $0.14 per mile driven. The second plan has an initial fee of $53.98 and costs an additional $0.16 per mile driven. How many miles would Tom need to drive for the two plans to cost the same?

Answer:

200 miles

Step-by-step explanation:

Let miles driven = x

First option :

57.98 + 0.14x

Second option :

53.98 + 0.16x

First option = second option

57.98 + 0.14 = 53.98 + 0.16x

57.98 - 53.98 = 0.16x - 0.14x

4 = 0.02x

x = 200

200 miles

3 0
3 years ago
Two balls A and B rotate along a circular track. Ball A makes 4 full rotations in 120 seconds. Ball B makes 3 full rotation in 6
lara [203]
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Ball A:

120 / 4 = 30

It takes 30 seconds for Ball A to make a full rotation.

Ball B:

60 / 3 = 20

It takes 20 seconds for Ball B to make a full rotation.

Find the least common multiple of 20 and 30 to find the time at which they'll meet.

Multiples of 20: {20,40,60}
Multiples of 30: {30,60}

60 is the least common multiple of both 20 and 30.

The balls will meet again at 60 seconds.
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Click and drag like terms onto each other to simplify fully.<br> 2-5+7y-5x+7x-2y
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Answer: 5y + 2x - 3

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6 0
3 years ago
Read 2 more answers
Expand and simplify pla
k0ka [10]
Y = f(3f - 4g + 3) +7g(3f - 4g + 3)
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EMERGENCY <br> Triangles ABC and DEF are similar. Find the length of the segments EF and DF
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Answer:

EF = 1.5. DF = 2.

Step-by-step explanation:

DE is half of AB so EF is half of BC and DF is half of AC.

7 0
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