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Allushta [10]
3 years ago
13

If DE=4x-1,EF=9,and DF=9x-22, find the variable of x

Mathematics
1 answer:
Damm [24]3 years ago
6 0

Given:\\\overline{DE}=4X-1\\\overline{EF}=9\\\overline{DF}=9x-22\\\\\overline{DF} \; is \; a \; line \; segment,  \; E \; is  \; a \; point \; in  \; between.\\\\So,\; \overline{DE}+\overline{EF}=\overline{DF}\\4x-1+9=9x-22\\Subtract \; 9x \; on \; both \; sides\\\\4x-9x-1+9=9x-9x-22\\Combine \; like \; terms \; on \; both \; sides\\\\-5x+8=-22\\Subtract \; 8 \; on \; both \; sides\\\\-5x+8-8=-22-8\\-5x=-30\\Divide \; -5 \; on \; both \; sides\\\\\frac{-5x}{-5}=\frac{-30}{-5}\\x=6

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Please help !!!!!!!! brainliest attachment
evablogger [386]

Answer:

3 1/8

Step-by-step explanation:

25/9 * 9/8 =

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25/8 =

3 1/8

3 0
2 years ago
Read 2 more answers
What is the place value of 7 in these numbers?
spin [16.1K]

Answer:

(11) 7 thousandths (12) 7 ones (13) 7 tenths

Step-by-step explanation:

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3 0
3 years ago
The cost of a rental is 160 for 5 days. At this rate, how much does it cost to rent the tent for one day?
Olin [163]

the answer is $32 you divide 160 by 5

8 0
3 years ago
Help am stuckkkkk please help​
Otrada [13]

Step-by-step explanation:

it is a box or prism.

the volume is simply

length × width × height

in our case

8m × 6m × 5m = 240 m³

doubled dimensions means

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the difference is

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we could have gotten the new volume also based on the original volume :

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= the original volume (240 m³) × 8 = 1920 m³

3 0
1 year ago
Solve the system using any method. Show your work.<br> { 3 x + y = 4<br> − 3 x − y = − 8
prisoha [69]

Answer:

No solution

Step-by-step explanation:

3 x + y = 4 (1)

− 3 x − y = − 8 (2)

Add (1) and (2)

0 + 0 = -4

0 = -4 is a false statement

So, no solution

5 0
3 years ago
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