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Alexeev081 [22]
3 years ago
8

Plzzzzz!!!!! HELP ME!!!!!! I"LLL DOOO ANYTHING

Mathematics
2 answers:
Vadim26 [7]3 years ago
8 0
12a= -48 a=4 divide each side by 12
Ainat [17]3 years ago
3 0

Answer:

-4

Step-by-step explanation:

12a=48

You have to keep the variable independent so we have to divide

12a/12= -48/12

negative divided by a positive is negative

a= -4

Hope this helps! Can u please give a brainliest?

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James and Sarah went out to lunch. The price of lunch for both of them was $40. They tipped their server 20% of that amount. How
zmey [24]

Answer:

Each person paid $24.

Step-by-step explanation:

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2 years ago
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if A and B together can do a piece of work in 10 days and B along can do it in 15 days, how many part of the work does A complet
anzhelika [568]

Answer:

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Step-by-step explanation:

Well work can be defined as: work = rate \ *\ time

where rate=amount of work that can be done in one unit of time

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this means that: 10a + 10b=1 where work=1 and it just means the entire job has been completed.

Since b can do it alone in 15 days, this means that: 15b=1

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We can now use this definition to substitute it into the first equation we made.

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Answer:

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Step-by-step explanation:

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liraira [26]

Answer:

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Step-by-step explanation:

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