2x + 3y = 23...........................(1)
3x - y = 7 Multiply by 3:-
9x - 3y = 21 Adding this to equation (1):-
11x = 44
x =
Plug this into equation (1):-
2(4) + 3y = 23
3y = 15
y = 5
Answer is x = 4, y = 5
Answer:
y=negative 2x+1
Step-by-step explanation:
rise over run negative 14 over 7 equals negative 2 and the y intercept is 1
Answer:
He spent 16 dollars on his sisters gift.
Step-by-step explanation:
You can do 320 x .05 which will equal 16.
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The sum of their speeds is 380 miles per hour. The difference of their speeds is 30 miles per hour. Then the faster plane is traveling at
.. (380 +30)/2 = 205 miles per hour
The slower plane's speed is 30 miles per hour less, so it is traveling at
.. 205 mph -30 mph = 175 miles per hour
