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Ksivusya [100]
3 years ago
10

John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $13.00. After usin

g a $6.00 gift certificate, they spend a total of $13.20. Write an equation to model this situation, and find the cost of one drink
Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0

Answer:

4d +$13.00 - $6.00 = $13.20; $1.55

Step-by-step explanation:

S_A_V [24]3 years ago
3 0
A single drink would cost be $1.55. This is because:
13 + 4x - 6 = 13.20.
(13.20 - 13 + 6) = 6.20.
6.20 / 4 = 1.55

Hope this helped.
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Are the functions f,g, and h given below linearly independent?
CaHeK987 [17]

Answer:

Linearly independent, x = 0

Step-by-step explanation:

- We are given three functions as follows:

                           f ( x ) = e^4^x\\\\g ( x ) = xe^4^x\\\\h( x ) = x^2e^4^x

- We are to determine the linear - independence of the given functions. We will use the theorem of linear independence which states that:

                           c_1*f(x) + c_2*g(x) + c_3*h(x) = 0

Where,

                       c1 , c2 , c3 are all zeroes then for all values of (x),

- The system of function is said to be linearly independent

- We will express are system of equations as such:

                           c_1*e^4^x + c_2*xe^4^x + c_3*x^2e^4^x = 0\\\\

- To express our system of linear equations we will choose three arbitrary  values of ( x ). We will choose, x = 0. then we have:

                          c_1*( 1 ) + c_2*(0) + c_3*(0 ) = 0\\\\c_1 = 0

- Next choose x = 1:

                          c_2*e^4 + c_3*e^4 = 0\\\\c_2 + c_3 = 0

- Next choose x = 2:

                          2*c_2*e^8 + 4*c_3*e^8 = 0\\\\c_2 + 2c_3 = 0

- Solve the last two equations simultaneously we have:

                          c_1 = c_2 = c_3 = 0     .... ( Only trivial solution exist )

Answer: The functions are linearly independent

- The only zero exist is x = 0.

5 0
3 years ago
Add please -35.25+(8.5)
givi [52]

Answer:

Hello the answer is -23.75

plus +minus=Minus so we will minus it

5 0
3 years ago
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lubasha [3.4K]

Answer:

3

Step-by-step explanation:

8x3=24

24/2=12

12+3=15

15/5=3

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3 years ago
What is the best estimate of 11 1/5÷2 3/4
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Answer:4

Step-by-step explanation:

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3 years ago
Write 841,620 in three different ways.
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