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DochEvi [55]
3 years ago
12

The mean number of people per day visiting a museum in July was 120. If 20 more people each day visited the museum in August, wh

at was the mean number of people per day visiting in August?
A. 620
B. 140
C. 120
D. 640
Mathematics
2 answers:
-BARSIC- [3]3 years ago
8 0
The correct answer is 140 because the mean, average, number from July per day represents how many people would have visited each day if they were all even.

If there were 20 more people each day in August, the mean would be 140. This would represent how many people visited each day.
vovangra [49]3 years ago
5 0

Answer:

160

Step-by-step explanation:

The correct answer is: 160.

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What is the simplified expression
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-4x-1

Step-by-step explanation:

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AB=6CM AC= 12cm <br> calculate the length of CD
Brrunno [24]

AB=6cm AC=12cm

AC² = AB + BC²

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I'll give you more points but you have to answer all the parts to the question. I need this plsssss ty lol. Show all work too pl
alexira [117]

Answer:

a) 34mi

b) 10mi

c) 44mi

d) by Calculating the amount of miles it would take John to go to school plus the amount of miles it would take Sara to go to school. Then add the sum of the amount of miles it took for both to go to school.

Step-by-step explanation:

a) explanation:

a^{2} +b^2=c^2

16^2+30^2=c^2

256 + 900 = c^2

c^2=1156

\sqrt{1156}=34mi

b) explanation:

a^{2} +b^2=c^2

6^2+8^2=c^2

36+64=c^2

c^2=100

\sqrt{100} =10mi

c) explanation: we already have all the data from John's house to Sara's House.

John's House to Sara's House = John's House to School + Sara's House to School.

Sara's House to School (Question #1) = 34mi

John's House to School (Question #2) = 10mi

34(mi) + 10(mi) = 44(mi)

d) explanation: explanation is on the answer

7 0
2 years ago
What is the slope / rate of change for 2, 5 and -3, 7​
Nady [450]

Answer:

\displaystyle m=\frac{-2}{5}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS<u> </u>

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (2, 5)

Point (-3, 7)

<u>Step 2: Identify</u>

x₁ = 2, y₁ = 5

x₂ = -3, y₂ = 7

<u>Step 3: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope<em> m</em>

  1. Substitute in points [Slope Formula]:                                                             \displaystyle m=\frac{7-5}{-3-2}
  2. [Slope] [Fraction] Subtract:                                                                             \displaystyle m=\frac{2}{-5}
  3. [Slope] [Fraction] Rewrite:                                                                              \displaystyle m=\frac{-2}{5}
4 0
2 years ago
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