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crimeas [40]
3 years ago
10

3x + y = 4 x - 2y = 3

Mathematics
1 answer:
Anna007 [38]3 years ago
7 0
Eliminate y's
multily top equation by 2 and add to 2nd

6x+2y=8
<u>1x-2y=3 +</u>
7x+0y=11

7x=11
x=11/7
sub back


x-2y=3
11/7-2y=3
add 2y both sides
11/7=2y+3
minus 3 which is 21/7
-10/7=2y
divide by 2 or times 1/2
-5/7=y


(x,y)
( \frac{11}{7},  \frac{-5}{7})

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2 years ago
a parking garage has 6 levels. Each level has 15 row. Each row has the same number of parking spaces. there are 2,250 parking sp
Mandarinka [93]
To start with, we know there’s a definite amount of parking spaces in all(2,250) and we also know each level(6 in all) had 15 rows of parking spaces.

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To check this answer we can do

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True


This confirms this answer as correct. Hope this helps.
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