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Fiesta28 [93]
3 years ago
15

The amount of blood in a person's body varies directly with body weight. A person who weighs 160 lb has about 4.6 qt of blood. A

bout how many quarts of blood are in the body of a 175-lb person?
Mathematics
1 answer:
Masteriza [31]3 years ago
7 0
Hey! The answer is 5.03 qt of blood.
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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

substitute equation A in equation B

z=10t+11(90-t)

z=10t+990-11t

z=990-t

therefore

The expression for the combined total dollar amount is $(990-t)

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Answer:

16 + -16 -4 ( 20 ) - 6)

Step-by-step explanation:

here is answer

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