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Ahat [919]
3 years ago
10

1. Solve the system of equations. 2y - 3z=0 x+3y = -4 3x + 4y = 3

Mathematics
1 answer:
Anestetic [448]3 years ago
7 0

Answer:

1. y = 3/2z

Step-by-step explanation:

1. ,2y-3z + 3z =0 + 3z ,2y=3z, 2y/2 =3z/2=3/2z

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The cost of printing T-shirts is defined by the equation C = 250+5.5n, where C represents the total
tatuchka [14]

Answer:

<em>The school paid for printing 130 T-shirts</em>

Step-by-step explanation:

<u>Function Models</u>

We are given the cost of printing n T-shirts as the equation:

C=250+5.5n

For example, if 10 T-shirts were printed, the school would pay:

C=250+5.5(10)=250+55=\$305

We know the school paid $965 and are required to find the number of T-shirts that were printed. If we use the equation with C=965, we can solve it for n:

965=250+5.5n

965-250=5.5n \Rightarrow 5.5n=715

Solving:

n=715/5.5=130

The school paid for printing 130 T-shirts

7 0
3 years ago
Simplify each algebraic expression. Drag the tiles to the correct boxes to complete the pairs.
lord [1]

Answer:

1. 5x-2

2.  5x+ 2

3. -5x-2

4. -5x+2

7 0
2 years ago
I need help ASAP will mark you the brainliest
love history [14]

Answer:

The similarity is they are using tools to help them make the lines, but the differences are they are using different tools to make different lines. While 1 of the tools is similar to the other

Step-by-step explanation:

6 0
2 years ago
The average movie ticket price in dollars since 1980 can be modeled by 0.142x + 1.93 where x is the number of years since 1980.
ipn [44]

Answer:

Step-by-step explanation:

1985:

x = 5 years  ( 1980 to 1985- 5 years)

0.142x + 1.93 = 0.142*5 + 1.93

                     = 0.71 + 1.93

                     = $ 2.64

                     

1999:

x = 19 years

0.142x + 1.93 = 0.142*19+ 1.93

                     = 2.698 + 1.93

                     =4.628 =  $ 4.63

                     

2010:

x = 30 years

0.142x + 1.93 = 0.142*30 + 1.93

                     =  4.26 + 1.93

                     = $ 6.19

                   

4 0
2 years ago
How do u solve 21-23
Zepler [3.9K]

the answer is -2 because 21-23 is a negative number

7 0
3 years ago
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