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3 years ago

7

There are 20 bicycles and 10 cars parked in the parking lot. Each bicycle had two wheels and each car had four wheels. How many

wheels are there in total?

2 answers:

Sliva [168]3 years ago

6 0

20(2) + 10(4)
40 + 40
80

There are 80 wheels in total

hope this helps

AlexFokin [52]3 years ago

6 0

20 × 2 = 40 bicycle wheels
10 × 4 = 40 car wheels
40 + 40 = 80 wheels total

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3 years ago

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3 years ago

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3 years ago

Consider the similar triangle below. <br> ABC is the per-image and PQR is the image.

soldi70 [24.7K]

Answer:

<em>Scale factor: 2</em>

<em>PR = 14</em>

<em>Perimeter = 34</em>

Step-by-step explanation:

<u>Similar Triangles</u>

Similar triangles are those who have their corresponding side lengths proportional, i.e. the ratio of the corresponding sides is equal.

The figure shows similar triangles ABC and PQR. We can also see corresponding sides BC and QR have lengths 6 and 12 respectively.

The scale factor is $\frac{12}{6}=2.$

The rest of the sides can be calculated by using the per-image triangle ABC side lengths and the new-found scale factor. Thus:

PR = AC*2 = 7*2 = 14

PR = 14

PQ = AB*2 = 4*2 = 8

The perimeter of the triangle PRQ is the sum of its side lengths:

P = 12 + 14 + 8 = 34

Answers:

Scale factor: 2

PR = 14

Perimeter = 34

3 0

3 years ago