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KonstantinChe [14]
3 years ago
13

I need help on 8 ...............................

Mathematics
2 answers:
Komok [63]3 years ago
4 0

Answer:

55

Step-by-step explanation:

60 minutes is an hour 60 - 5 is 55

brilliants [131]3 years ago
3 0

Answer:

55

Step-by-step explanation:

60 minutes is an hour 60 - 5 is 55

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Audrey has $111 to spend on a tennis racket and lessons. The racket costs $55 and the lessons cost $14 per hour. Define a variab
Mnenie [13.5K]

Answer:

Audrey can afford 4 hours of lesson.

Step-by-step explanation:

Given that:

Amount Audrey has to spend = $111

Cost of racket = $55

Cost per lesson = $14

Let,

y be the total cost

x be the number of hours

According to given statement;

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7 0
3 years ago
Write a matrix to represent the system of equations.
ioda

Answer:

7   -1   6  |  -8

7  -5   7   |  1

0    1    -4 | -5

Step-by-step explanation:

Note that there are four columns in this system, representing the variables x, y and z and constants.  So the given matrix pattern is appropriate:  It has three columns for the coefficients of x, y and z and one column for the constants.

We need only identify the coefficients and transfer them into the appropriate boxes of the matrix pattern.

We get:

7   -1   6   -8

7  -5   7     1

0    1    -4  -5

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