1) 24 / 18 = 1.33 and 28 / 21 = 1.33
so the exchange rate must be 1.33
2)1080 - 720 = 360
360 / 12 = 30
so the change is $30 per year
3) The slope would be a straight line and the y- intercept would be +30
Hope this helps! :)
Answer:
(-5,-10)
it is in quadrant 3 (quadrant III)
Step-by-step explanation:
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Answer:
-2x-44
Step-by-step explanation:
-6x-42=-4x-2
Answer:
b = $5
s = $6
Step-by-step explanation:
this can be solved using simultaneous equation
s = streamers
b = balloons
either of the 3 equations can be used to determine the price of the items
11b + 6s = 91 equation 1
15b + 4s = 99 equation 2
multiply equation 1 by 4 and equation 2 by 6
44b + 24s = 364 eqn 3
90b + 24s = 594 eqn 4
subtract equation 3 from 4
230 = 46b
b = 5
substitute for b in eqn 1
55 + 6s = 91
s = 6