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Helen [10]
3 years ago
13

Mark and Jen are both

Mathematics
1 answer:
Sedbober [7]3 years ago
6 0
Can you tell me what book this is from so I can try to help!:)
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Do anyone know how to do this?​
kykrilka [37]

Answer:

1.) x=4

2.) x=14

Step-by-step explanation:

FOR #1:

1.) In order to solve the parallelogram, you must know that each opposite sides must equal...

so KL=JM and KJ=LM

2.) To solve for "x", you must substitute

 KL= 7x-2\\JM=12x-22

so it should end up with...

7x-2=12x-22

3.) Solve the equation with some algebra

7x-2=12x-22\\-5x=-20\\x=4

FOR #2:

1.) In order for a square, rectangle, parallelogram, (or any shape with four sides), it must equal to 360°. And you just have two given angles, which equal to 180, so that means the unknown equals to 180...So in this case you should have

(3x+5)+(9x-17)+180=360

as your equation...

2.) Solve with algebra

(3x+5)+(9x-17)+180=360

3x+5+9x-17=180\\12x-12=180\\(\frac{1}{12}) 12x=168 (\frac{1}{12})\\x=14

<u><em>multiplied</em></u>

3 0
3 years ago
Read 2 more answers
A population of 805 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 6 years?
Phantasy [73]

Answer:

Step-by-step explanation:

y = a(b)^x

a would represent the initial value.

b would represent the change

x represents the number of years

y = 805(0.9)^6

y = 805(0.531441)

y = 427.8

y =  427 cheetahs

4 0
3 years ago
An amusment park ticket costs $40. You have a 5%
serg [7]

Answer:

38

Step-by-step explanation:

4 0
3 years ago
Which of the statements about the point (4 , 9) are true i.the x-coordinate is 4. ii.the y-coordinate is 4. iii.the point is 4 u
Gekata [30.6K]
I and iv are correct. 
hope it helps. 
5 0
3 years ago
A spherical balloon has a 22-inch diameter when it's fully inflated. Half of the air is let out but remains sphere-shaped.
Rudik [331]

Answer:

8.7 inches rlly hope it helps

Step-by-step explanation:

7 0
4 years ago
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