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eimsori [14]
3 years ago
13

A new movie can be downloaded for $8 per movie. An older movie can be downloaded for $3 per movie. Quinn buys a total of 7 movie

s and spends $41.
A. define your variables. Write the system of equations and represent it as a matrix equation.

b. use matrices to solve the equation by hand

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
8 0
Let be x the number of new movie, and y the older,
the matrix according to the problem is AZ=B, look at the attached file

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What is the value of 5 in 756 write and draw to explain how you know?
kykrilka [37]

In the attached diagram you can see Place Value Chart that is used to help understand the value of each digit based on the place or position.

For the number 756:

  • 7 has a value of 7 hundreds, or 700;
  • 5 has a value of 5 tens, or 50;
  • 6 has a value of 6 ones, or 6.

Answer: 5 has a value of 5 tens, or 50

8 0
4 years ago
Read 2 more answers
SOMEONE PLEASE ANSWER ASAP!! 55 POINTS!!
nadezda [96]

Answer:

EG = 16 and FH =22

Step-by-step explanation:

We know that the diagonals of a parallelogram bisect each other

so 2a  = 3b+2

and 2a+3 = 6b-1

We know have a system of equations to solve

2a  = 3b+2

 2a+3 = 6b-1

Subtract 3 from each side

2a+3-3 = 6b-1-3

2a = 6b -4

Now we can set the 2 equations equal  ( 2a  = 3b+2  and 2a = 6b -4)

3b+2 = 6b-4

Subtract 3b from each side

3b-3b+2 = 6b-3b-4

2 = 3b-4

Add 4 to each side

2+4 = 3b-4+4

6 = 3b

Divide by 3

6/3 = 3b/3

2 =b

We want to find a

2a  = 3b+2

Substitute in b=2

2a = 3(2) + 2

2a = 6+2

2a =8

Divide by 2

2a/2 =8/2

a = 4

Now that we know a and b

EG = 2a + 3b+2

    = 2(4) + 3(2)+2

   = 8+6+2

   = 16

FH = 2a+3 + 6b-1

    = 2(4) +3 +6(2)-1

    = 8+3+12-1

   = 23-1

  = 22

4 0
3 years ago
Line p has a slope of -3. Line t is perpendicular to line p and passes through the point (9,2). What is the equation for line t?
olganol [36]

Answer:

y = (1/3)x - 1

Step-by-step explanation:

The product of the slopes of perpendicular lines is -1. That makes the slopes of perpendicular lines negative reciprocals. Since line p has slope -3, the slope of line t is 1/3. Also, line t passes through point (9, 2).

y = mx + b

m = slope

y = (1/3)x + b

Now we replace x and y with the x- and y-coordinates of the given point, respectively, and we solve for b.

2 = (1/3)(9) + b

2 = 3 + b

b = -1

Now we replace b with -1.

y = (1/3)x - 1

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xxTIMURxx [149]
1583 because that’s the year that the they created that math problem
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What is bigger 1/5 or 2/10
trasher [3.6K]
They are equal...1/5 is half of 2/10

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