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3 years ago

3x - 7y = -40 3x - 2y = -4

Mathematics

2 answers:

eimsori [14]3 years ago

5 0

Answer:

What are you solving for?

Step-by-step explanation:

zmey [24]3 years ago

3 0

Answer:

(7.5,4.1)

Step-by-step explanation:

Given

3x_7y =_40

3x_2y=_4

sol

3x_7y=_40..... equation 1

3x_2y=_4 ..... eq 2

here

eq 2 multi 3 eq 1 multiply 3

9x_21y=_120

9x_6y=_12

_ + = +

__________

0x+ 15y =108

y=108÷15

y=7.5

the y value putting the eq 1

3x_7y=_40

3x_7×7.5=_40

3x_52.5=_40

3x=52.5_40

3x=12.5

x=12.5÷3

x=4.1

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forsale [732]

Answer:

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See below for word problem.

Step-by-step explanation:

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8 0

4 years ago

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timurjin [86]

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Yuki888 [10]

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3 years ago

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Igoryamba

Hiya!

First, you can plot this using a table. One side can be 'Women' and the other 'Men'. One the vertical side of it, write '1980', '1981', '1982', etc., for maybe fifteen years to be on the safe side. Then, your starting value is 6 million and 5.4 million, respectively.

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Once you're done, you can circle the year both were the same, and you can even plot this on a graph to prove to your teacher you know what's business! ;)

If you found this especially helpful, I'd appreciate if you'd vote me Brainliest for your answer. I want to be able to assist more users one-on-one! :)

6 0

4 years ago

Read 2 more answers