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madam [21]
3 years ago
9

Use the substitution method to solve the system of equations.

Mathematics
1 answer:
Elan Coil [88]3 years ago
7 0
<span>A. (-3, 5) the equation is xy=-15 or x=-15/y put y=5 x=-15/5 x=-3</span>
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A submarine starts at the surface of the Pacific Ocean and descends 60 feet
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Answer:

360 feet

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We need to multiply the number of hours, 6, with 60 feet: 6*60 = 360 feet The submarines depth after 6 hours will be 360 feet.

4 0
2 years ago
An electric company charges a certain rate per kilowatt-hour (\text{kWh})(kWh) of electricity used and an administrative fee of
zavuch27 [327]

Answer:

r represents the rate the electric company charges per kilowatt-hour.


Step-by-step explanation:

r represents the rate the electric company charges per kilowatt-hour.


Total charged to Zhao was 63.25 out of which 3.50 is administrative charge (fixed).

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3 0
3 years ago
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Step-by-step explanation:

i think im really sorry if im wrong

3 0
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Any1 know the answers for this?
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3 years ago
What percent of 29.5 is 10.03
Alexxandr [17]
So if we take 29.5 to be the 100%, what is 10.03 in percentage?

\bf \begin{array}{ccll}&#10;amount&\%\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;29.5&100\\&#10;10.03&p&#10;\end{array}\implies \cfrac{29.5}{10.03}=\cfrac{100}{p}\implies p=\cfrac{10.03\cdot 100}{29.5}
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3 years ago
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