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Mathematics

1 answer:

Lina20 [59]2 years ago

7 0

Answer:

1. X-intercept is 5 Y-intercept is 4 (Red Line)

2. X-intercept is 1 Y-intercept is 2 (Blue Line)

3. X-intercept is -2 Y-intercept is 4 (Green Line)

Step-by-step explanation:

DESMOS graphing calculator. Here is the graph showing my work:

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Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours

uysha [10]

Answer:

$\$(990-t)$

Step-by-step explanation:

The correct question is

Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours at her two jobs. Let t be the number of hours Susan worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month

Let

t -----> the number of hours that Susan work as a tutor

y ----> the number of hours that Susan work as a waitress

z ---> the combined total dollar amount she earned this month

we know that

$t+y=90$

$y=90-t$ -----> equation A

we know that

The combined total dollar amount she earned this month is equal to the number of hours that Susan work as a tutor multiplied by $10 plus the number of hours that Susan work as a waitress multiplied by $11

$z=10t+11y$ ----> equation B