3 years ago

Can -20 and 20 be expressed with a less than or equal to sign? Example: -20 _< 20.

Mathematics

1 answer:

frosja888 [35]3 years ago

4 0

Less than. -20 is not the same as positive 20

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Alabama papas must average 80 on five test . Scores on the first four test were 81 73 84 and 76 what is the lowest score she can

Salsk061 [2.6K]

She has to score at least 86 on her fifth test.

Further explanation:

We will use the average formula to find the fifth value.

Given

$Average\ required=80\\x_1=81\\x_2=73\\x_3=84\\x_4=76\\x_5=?$

We have to find x5

The formula for average is:

$x=\frac{Sum\ of\ values}{Total\ number\ of\ values}\\Here,\\n=5\\So,\\x=\frac{x_1+x_2+x_3+x_4+x_5}{5}\\Putting\ values\\80=\frac{81+73+84+76+x_5}{5}$

$80*5=314+x_5\\400=314+x_5\\x_5=400-314\\x_5=86$

She has to score at least 86 on her fifth test.

Keywords: Average, Word Problems

Learn more about average at:

#LearnwithBrainly

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Help solving question 5 please.

Rasek [7]

Answer:

Step-by-step explanation:

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3 years ago

Is y=6, y=3x+4 consistent or inconsistent

Dominik [7]

It’s actually independent

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Complete the table<br> 28 to 4<br> __ to 3<br> 70 to __

Elza [17]

Answer:

21 to 3

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Step-by-step explanation:

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21÷7 = 3

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When plotting points on the coordinate plane below, which point would lie on the x-axis?

Romashka-Z-Leto [24]

It’s between (6,0) (0,2) sorry if I’m wrong

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