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topjm [15]
3 years ago
9

Let f(x) = -3x and g(x) = 2x-1

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0
It is B. 3(-3x)+2(2x-1)= -9x+4x-2—> (-5x-2)
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Sumalee and Jennifer are selling flower bulbs for a school fundraiser. Customers can package of tulip bulbs and bags of daffodil
Alecsey [184]

Answer:

<u>tulips bulbs cost $5; and daffodil bulbs costs $8 </u>

Step-by-step explanation:

Variables can be used to create equations and set up a system of equations. I used the following variables:

Tulip bulbs=  t

Daffodil bulbs= d

We need create two equations using the total sales, and amount of each item sold. Using the variables I chose I set up an equation representing the sales of each girl.

Sumalee sold 6 tulip bulbs and 6 daffodil bulbs for $78.

6t+ 6d= 78

Jennifer sold 6 tulip bulbs and 4 daffodil bulbs for $62.

6t+ 4d= 62

Using the equations we can set up a system of equations. To solve the system you can use either the substitution method or the elimination method.

(substitution)

Isolate one of the variables in the first equation.

6t+ 6d-6t  = 78-6t  

6d/ 6= (-6t+78)/6

d= -t+13

Substitute d= -t+13 into equation 2 replacing variable d. Using the order of operations solve for t.

6t+ 4(-t+13) = 62

6t- 4t+52 = 62

2t = 10

<u>t= 5</u>

Substituting t=5 for the value of t in equation 1, and solve of d.

6(5)+ 6d= 78

30+ 6d= 78

6d=48

<u>d=8</u>

<u>This means one package of tulips bulbs cost $5, and one bag of daffodil bulbs costs $8 </u>

4 0
3 years ago
Hi, Help plssss
olga_2 [115]

Answer:

a and b are parallel

Step-by-step explanation:

corresponding angles converse

3 0
2 years ago
Read 2 more answers
In need of help! find the value of x
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∆= 180°
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180°-120°=60°

a line = 180° on both sides.
180°-60°=X
120°=X
3 0
3 years ago
3 ÷ 1/2= 1 ÷ 1/4= 1/2÷2= <br>1/3÷4= 2÷1/6= 1/4÷3=​
Alchen [17]
3/ 1/2 = 6 1 / 1/4 = 4 1/2 / 2 = 1/4
1/3/ 4 = 1/12 2/ 1/6 =12 1/4 /3 = 1/12
4 0
3 years ago
In the number 432.785 which number is the hundredths digit
dimulka [17.4K]
The number in the hundredths digit is 8.
7 0
3 years ago
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