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andreev551 [17]
3 years ago
9

Look at the picture above please help!!!

Mathematics
1 answer:
IgorLugansk [536]3 years ago
7 0
I think you have to subtract 60% and 80% which you get 20%
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Does anyone know this?
Bumek [7]

Answer:

B

Step-by-step explanation:

Initial mean = 156, Changed mean = 163.92

So, mean increases. Only condition that satisfies this is B.

7 0
3 years ago
Supposed Blue spruce was included in the list and the mean decreased to 165 what is the height of the Blue spruce?
postnew [5]
The height of the blue spruce was 45.

We find the mean by adding all of the data points and dividing by the number of data points.  We will add the unknown value x and change the number we're dividing by to 7:

(160+320+100+110+200+220+x)/7 = 165
(1110+x)/7 = 165

Multiply both sides by 7:
1110 + x = 1155

Subtract 1110 from both sides:
x = 45
7 0
3 years ago
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<em>QUESTION:</em>

<em>QUESTION:estimate the equation 12+19.61.</em>

<em>QUESTION:estimate the equation 12+19.61.Answer:</em>

<em>QUESTION:estimate the equation 12+19.61.Answer:12+19.61 =31.61.</em>

4 0
3 years ago
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Solve 80/100 = 68/n using cross multiplication.
Karo-lina-s [1.5K]

80n = 68*100

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n = 6800/80

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6 0
3 years ago
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10. The value of the 8th term is 78.
Yuri [45]

Answer: The answer is 88

Step-by-step explanation: It is recursive because you can add 78+10=88

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3 years ago
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