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mina [271]
3 years ago
6

2+9n=72 how do you find what n equals?

Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer:

the correct answer is 7.78

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15 is 30% of what number?
777dan777 [17]
15 is 30% of 50 

Change the percentage to a decimal by dividing it over 100:
\frac{30}{100} = 0.3

Divide 15 over 0.3:
\frac{15}{0.3} = 50

3 0
3 years ago
Read 2 more answers
Which expression is equivalent to s+s -4s<br> A- 1-3s<br> b- -4s<br> c- s-3<br> d- -2s
a_sh-v [17]

Answer:

D. -2s

Step-by-step explanation:

s+s-4s

=1s+1s-4s

=(1+1-4)s

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3 0
3 years ago
The perimeter of △CDE is 55 cm. A rhombus DMFN is inscribed in this triangle so that vertices M, F, and N lie on the sides CD ,
ivanzaharov [21]

Answer:

  CD = 14 cm; DE = 21 cm

Step-by-step explanation:

The perimeter is the sum of side lengths (in centimeters), so ...

  CD + DE + CF + EF = 55

  CD + DE + 8 + 12 = 55 . . . . . . . substittute for CF and EF

  CD + DE = 35 . . . . . . . . . . . . . . subtract 20

___

The segment DF is a diagonal of the rhombus, so bisects angle D. That angle bisector divides ΔCDE into segments that are proportional. That is, ...

  CD/DE = CF/EF = 8/12 = 2/3

___

So, we have two segments whose sum is 35 (cm) and whose ratio is 2 : 3. The total of "ratio units is 2+3=5, so each must stand for a length unit of 35/5 = 7 (cm). The sides are ...

  CD = 2·7 cm = 14 cm

  DE = 3·7 cm = 21 cm

<em>Check</em>

  CD + DE = (14 +21) cm = 35 cm . . . . . matches requirements

7 0
3 years ago
HELPP PLEASEEEEEEE
Alexxx [7]
A, c, and d
plug in each x in the equation and it should equal the y value
7 0
2 years ago
a line contains the points (-26, -37) and (-32, -61). What is the slope of the line in simplified form?
Valentin [98]
The answer is 4 for the slope
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3 years ago
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