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Margaret [11]
3 years ago
10

Use a common denominator to find equivalent fractions for 1/3 and 4/5

Mathematics
2 answers:
trasher [3.6K]3 years ago
6 0

heck nah

Step-by-step explanation:

heck nah

velikii [3]3 years ago
4 0
Common denominator is 15

1/3 = 3/15
4/5 = 12/15
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Please help me with this I need to find out what y is
julsineya [31]

Answer:

26°

Step-by-step explanation:

<DFG+<EFG = 180°( Being sum of adjacent angle in linear pair is 180°)

You can also write;

<DFG+<EFG = 180°( Being sum of supplementary angle is 180°)

By putting the value of those angles;

5y+3+(2y-5)=180

5y+3+2y-5=180

5y+2y-5+3 =180°

7y-2=180°

7y=180+2

7y=182

y=182/7

y=26°

Hence,

The value of y is 26°

5 0
2 years ago
3(0.3x +1.3) = 2(0.4x -0.85)
Verdich [7]

Answer:

Step-by-step explanation:

3(0.3x + 1.3) = 2(0.4x - 0.85)

0.9x + 3.9 = 0.8x - 1.70

0.9x - 0.8x = - 1.70 - 3.9

0.1x = - 5.6

x = - 5.6 / 0.1

x = - 56

5 0
3 years ago
HELP PLS!!! simplify:
dem82 [27]

Answer:

A is correct because you need to stop deleting my answers.

6 0
3 years ago
9.4 The heights of a random sample of 50 college stu- dents showed a mean of 174.5 centimeters and a stan- dard deviation of 6.9
gladu [14]

Answer:  a) (176.76,172.24), b) 0.976.

Step-by-step explanation:

Since we have given that

Mean height  = 174.5 cm

Standard deviation = 6.9 cm

n = 50

we need to find the 98% confidence interval.

So, z = 2.326

(a) Construct a 98% confidence interval for the mean height of all college students.

x\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=(174.5\pm 2.326\times \dfrac{6.9}{\sqrt{50}})\\\\=(174.5+2.26,174.5-2.26)\\\\=(176.76,172.24)

(b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 174.5 centime- ters?

Error would be

\dfrac{\sigma}{\sqrt{n}}\\\\=\dfrac{6.9}{\sqrt{50}}\\\\=0.976

Hence, a) (176.76,172.24), b) 0.976.

8 0
3 years ago
9(2x-1)=3(x+2)+3x  solve the equation thanks so much for your help guys or girls you have no idea how helpful it is :)
stealth61 [152]
9(2x-1)=3(x+2)+3x

18x-9=3x+6+3x

18x-9=6x+6

18x-6x=6+9

12x=15

x=15/12

x=5/4
5 0
3 years ago
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