2 years ago

Help me please someone

Mathematics

2 answers:

Genrish500 [490]2 years ago

8 0

Answer:

Step-by-step explanation:

Nikolay [14]2 years ago

8 0

Your answer is A have a good day!

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How do you use the elimination method ?

lidiya [134]

To use the elimination method, you have to create variables that have the same coefficient, then you can eliminate them.

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3 years ago

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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3 years ago

What is thermal energy?

Gwar [14]

C. The kinetic energy of particles in a system

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2 years ago

What is 1/6+1/2 in its simplest form?

Salsk061 [2.6K]

1/2. 1/6
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2/3

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3 years ago

Read 2 more answers

antoniya [11.8K]

Step-by-step explanation:

first you find 60% of 357.50 which is $214.50. Next you would add $357.50+214.50=572

so the awnser is

the sale price of a popular smart phone is $572.

Hope this helps!!

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