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SSSSS [86.1K]
3 years ago
12

Find the perimeter of ABCD

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Step-by-step explanation:

Scale factor of DEF : ABC = 5 : 15 = 1 : 3.

Hence perimeter of ABC = 12ft * 3 = 36ft.

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6 = 2 (y + 2)<br><br> find X <br> please
Elena-2011 [213]

Answer: y = 1

there no x, i think you meant y?

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

6=2(y+2)

6=(2)(y)+(2)(2)(Distribute)

6=2y+4

Step 2: Flip the equation.

2y+4=6

Step 3: Subtract 4 from both sides.

2y+4−4=6−4

2y=2

Step 4: Divide both sides by 2.

2y over 2 = 2 over 2

6 0
3 years ago
Calculate the perimeter of a regular pentagon which has a side of 9cm
Alisiya [41]
The answer is 45. there are 5 sides. each one is 9cm. 9*5= 45. 
hope this helps.
8 0
3 years ago
1. Ella took a biology test that was 54 questions. She got 5/6 of the questions correct. How many questions did she get wrong on
melisa1 [442]
1. She got 9 questions wrong. 

2. I believe the total is $44.80 
3 0
3 years ago
Ben is 20 years older than Daniel. Ben and Daniel first met two years ago. Three years ago, Ben was 3
fgiga [73]

Answer:

  33

Step-by-step explanation:

3 years ago, the difference in ages was twice Daniel's age. So, Daniel was 20/2 = 10 years old at that time. Ben was 30.

Now, Ben is 33.

_____

If two numbers have a ratio of 3:1, their difference is (3-1) = 2 times the smaller number.

4 0
3 years ago
I'll name you the BRAINIEST if you can answer this.The scale factor for a model is 18 cm
bezimeni [28]

Answer:

  32.625 m

Step-by-step explanation:

You have the proportion ...

  18 cm : ___ m = 22.4 cm : 40.6 m

This can be rearranged to ...

  ___ m/(18 cm) = (40.6 m)/(22.4 cm)

Multiplying by 18 cm gives ...

  ___ m = (40.6 m)·(18/22.4)

  ___ m = 32.625 m

6 0
4 years ago
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