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frosja888 [35]
3 years ago
5

What number should be removed from the list {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13} so that the mean of the remaining number

s is 7.25?
Mathematics
1 answer:
Julli [10]3 years ago
7 0

Answer:

3

Step-by-step explanation:

1+2+4+5+6+7+8+9+10+11+12+13 = 87

87/12 +7.25

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Simplify the expression -14
ehidna [41]
It would just be -14 still
8 0
3 years ago
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5.3, CD r- 8.8, and AD - 14.3, find AB to the nearest tenth.<br>If BC
pychu [463]
5.3/8.8=x/14.3 
AB is x,
x= 2.43

Hope I helped.
7 0
3 years ago
3. Find the value of a and b when<br>5+√6/5-√6 = a+b√6​
mr Goodwill [35]

The answer for A is,

a = 5 +  \frac{ \sqrt{6} }{ \sqrt{5} }  -  \sqrt{6}  -  \sqrt{6b}

And the answer for B is,

b = - 1 +  \frac{5 +  \frac{ \sqrt{6} }{ \sqrt{5} } - a  }{  \sqrt{6} }

hope it helps.

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4 0
2 years ago
Find the sides on this 30-60-90 triangle
Serga [27]

Answer:

A = 3, B = 5.2

Step-by-step explanation:

i think that is right, i hope this helps.

6 0
2 years ago
At the same store, Peter bought 2 pairs of pants and 5 shirts for $61, and Jessica bought 3 pairs of pants and 4 shirts for $67.
svetlana [45]

Hey there!!

Given :

The total cost for 2 pairs of pants and 5 shirts is $61.

The total cost for 3 pairs of paints and 4 shirts is $67.

<em>Let's take the cost for each pair of paints as 'p' and the cost for each shirt as 's'. </em>

Now, let's get these into an equation.

<em>Peter's equation</em> :

... 2p + 5s = 61

<em>Jessica's equation : </em>

...3p + 4s = 67

......................................................................................................

2p + 5s = 61 --- (1)

3p + 4s = 67 --- (2)

Multiply the first equation with 3 and the second equation with 2.

6p + 15s = 183

6p + 8s = 134

S<em>ubtract both the equations - </em>

... 7s = 49

Divide both sides with 7.

... s = 7

<u><em>Hence, the cost of each shirt is $7. </em></u>

Hope my answer helps!!


6 0
3 years ago
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