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victus00 [196]
2 years ago
10

PLEASE HELP! I CANT GET A BAD GRADE!

Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
5 0

Answer:

It is decreased by 3.25

Step-by-step explanation:

When you add all 8 numbers you'll get 58 then you divide them by 8 you will get 7.25 which is the mean. To find out what is the decrease we need to take out the 30 and add all the other numbers and we get 28. After that you divide 28 by 7 and you get 4. Subtract 4 from 7.25 and you get 3.25.

2+2+2+3+5+6+8+30=58

58/8=7.25

2+2+2+3+5+6+8=28

28/7 = 4

7.25-4=3.25

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20 points
Triss [41]

Answer:

10 months

$500

Step-by-step explanation:

Option 1

  • 300 + 20x, where x is the number of months

Option 2

  • 100 + 40x

Both options reveal same amount:

  • 300 + 20x = 100 + 40x
  • 300 - 100 = 40x - 20x
  • 200 = 20x
  • x = 200/20
  • x= 10 months

Cost of notebook:

  • 300 + 20*10 = 300 + 200 = $500
6 0
3 years ago
The graph of a line passes through the points (0, 6) and (6, 0).
Aleonysh [2.5K]

The equation of line passing through (0, 6) and (6, 0) is y = -x + 6

<u><em>Solution:</em></u>

Given that graph of a line passes through the points (0, 6) and (6, 0)

<em><u>The equation of line containing two points is given as:</u></em>

y - y_1 = m(x - x_1) ----- eqn 1

Where "m" is the slope of line

Here given two points are (0, 6) and (6, 0)

(x_1 , y_1) = (0, 6)\\\\(x_2, y_2) = (6, 0)

Let us first find the slope of line

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Substituting the values we get,

m=\frac{0-6}{6-0}=\frac{-6}{6}=-1

Thus slope of line "m" = -1

Substituting in eqn 1

y - 6 = -1(x - 0)\\\\y - 6 = -x + 0\\\\y - 6 = -x\\\\y = -x + 6

In standard form we get,

y = -x + 6

x + y = 6

Thus equation of line is found

5 0
3 years ago
Complete the equation of the line through (-10,3) and (-8,-8) Use exact Numbers. y=
lidiya [134]

Sum of roots = - 18

Product of roots = - 8 - 3 =-11

Therefore, y= x^2 + 18x - 11

3 0
3 years ago
Read 2 more answers
) 10 snow days out of 35 days.<br>Fraction:<br>Decimal:<br>Percent:​
bulgar [2K]

Answer:

fraction: 10/35

decimal: .2857

percent: 28.57%

Step-by-step explanation:

for decimals you divide (10/35)

for percents you divide then multiply by 100 (10/35 = .2857 x 100 = 28.57%)

3 0
3 years ago
17. Higher Order Thinking Solve h - 156 = 34
vaieri [72.5K]

Answer: h = 190.

Step-by-step explanation: You have to use the reverse so, the opposite of subtraction is addition, so 156 + 34 = 190. 190 which is the "h" 190 - 156 = 34

8 0
3 years ago
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