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den301095 [7]
2 years ago
10

There are 42 students on a large bus, and the rest are on a smaller bus. If 40% of the students are on the smaller bus, how many

total students are on the two buses?
Mathematics
2 answers:
nirvana33 [79]2 years ago
8 0
42/60 * 40
= 28
28+42=70

There are 70 total students on the two buses.
zloy xaker [14]2 years ago
3 0

Answer: 70 students

Step-by-step explanation:

No. of students in large bus = 42 students

40% are in small bus, therefore 60% are in the large bus;

60/100 = 42/x

Where x = total number of students in the bus.

Making x the subject of formula in the equation,

X = (100*42) / 60

X = 70 students

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Help! What's the slope?
Sliva [168]

Answer:

2/7

Step-by-step explanation:

You do the number it goes up, 1 to 3 in this case, over the number it goes sideways, 3 to -4. My teacher always said rise over run to help us remember.

7 0
3 years ago
The probability of contamination in batch 1 of a drug (event A) is 0.16, and the probability of contamination in batch 2 of the
VLD [36.1K]
We have:
Event A ⇒ P(A) = 0.16
Event B ⇒ P(B) = 0.09
Probability of event B given event A happening, P(B|A) = P(A∩B) / P(A) = 0.12

By the conditional probability, the probability of event A and event B happens together is given by:
P(B|A) = P(A∩B) ÷ P(A)
P(B|A) = P(A∩B) ÷ 0.16
0.12 = P(A∩B) ÷ 0.16
P(A∩B) = 0.12 × 0.16
P(A∩B) = 0.0192

When two events are independent, P(A) × P(B) = P(A∩B) so if P(A∩B) = 0.0192, then P(B) will be 0.0192 ÷ 0.16 = 0.12 (which take us back to P(B|A))

Since P(B|A) does not equal to P(B), event A and event B are not independent.

Answer: <span>Events A and B are not independent because P(B|A) ≠ P(B)</span>

4 0
3 years ago
Evaluate the expression for the given value of the variable -4b-8 + -1 b^2 + 2b^3 ; b= -2
Bad White [126]
-4b-8 + -1b^2 +2b^3
-4(-2)-8+-1(-2)^2+2(-2)^3
8-8+2^2-4^3
4-64
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4 0
3 years ago
Read 2 more answers
Can somebody plsss find the slop ASAP!!!!!
Oksanka [162]

Answer:

m=-2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (0, 0)

Point (1, -2)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{-2-0}{1-0}
  2. Subtract:                       m=\frac{-2}{1}
  3. Divide:                          m=-2
6 0
2 years ago
25 POINT'S!!!!!!! HELP ASAP
nalin [4]
The answer is C., because the situation represents as $240 being the first night's price and the rest of the nights are $210.
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2 years ago
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