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ladessa [460]
3 years ago
14

Bill estimates that 20 people will attend the seminar if it does not rain and 12 people will attend if it rains. The weather for

ecast indicates a 40% chance it will not rain and a 60% change it will rain on the day of the seminar. Determine the expected number of people who will attend the seminar.
Mathematics
1 answer:
Rama09 [41]3 years ago
6 0
15 people would show up
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211 times 9=<—round the answer.
Yuki888 [10]

Answer:

211 × 9 is 1899 so rounding to nearest thousands would be 2000

3 0
2 years ago
there are nickels, dimes, and quarters in a piggy bank. altogether, the coins are worth $3.65. the number of dimes is three time
hoa [83]

This question is solved using a system of equations, and doing this, we get that: There are 9 quarters, 4 nickels and 12 dimes.

I am going to say that:

x is the number of nickels.

y is the number of dimes.

z is the number of quarters.

In all, they are worth $3.65.

A nickel is worth $0.05, a dime is worth $0.1 and a quarter is worth $0.25, so:

0.05x + 0.1y + 0.25z = 3.65

Dimes: 3 times greater than nickels:

This means that:

y = 3x

Quarters: One greater than double the number of nickels:

This means that:

z = 2x + 1

Value of x:

We have y and z as function of x, so we can replace into the equation and find the value of x, so:

0.05x + 0.1y + 0.25z = 3.65

0.05x + 0.1(3x) + 0.25(2x+1) = 3.65

0.05x + 0.3x + 0.5x + 0.25 = 3.65

0.85x = 3.4

x = \frac{3.4}{0.85}

x = 4

y and z:

y = 3x = 3(4) = 12

z = 2x + 1 = 2(4) + 1 = 9

There are 9 quarters, 4 nickels and 12 dimes.

A similar question is found at brainly.com/question/17096268

4 0
2 years ago
What is the value of x
Olegator [25]

First set up the equation 12x-7=4x+9

Get all the x's on one side and number on one side so you have 8x= 16

You get X=2

3 0
3 years ago
Read 2 more answers
Simplify 6x+1 ty try to answer this and explain
Sergeu [11.5K]

Simplify the Value of:

6x     +       1   The equation is already simplified, There are no like terms.

You cannot factor    6x     +   1       either




Domain of:

6x     +    1

Solution:      [  - ∞    <    x    <   ∞ ]

Interval Notation:   [ (- ∞,  ∞) ]


Range of:

6x      +    1

Solution:    [    - ∞    <    f(x)   <    ∞ ]

Interval Notation:   [   (- ∞, ∞) ]


Parity of:

6x     +    1   =====>    Neither  even  nor odd


Axis interception points of:

6x   +   1

x-   Intercepts  ( - 1 / 6,   0 )

y-  Intercepts    ( 0,   1 )


Inverse of:

6x    +   1  =====>    x   -    1 / 6

Slope of:

6x    +   1

Answer:    ======>    m      =         6




Hope that helps!!!!!!!!!!                                        : )


7 0
3 years ago
Pls help I’m bad at math no matter how much I try ..
Korolek [52]

Answer:

unproportional

Step-by-step explanation:

3 0
3 years ago
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