Answer: (-9,4)
Step-by-step explanation:
2x-y=-22
-7x+y=67
-5x=45
x=-9
2(-9)-y=-22
-18-y=-22
-y=-4
y=4
Answer:
a=possible amount
3a+28>200
Step-by-step explanation:
Answer:
d. 9
Step-by-step explanation:
i friken used all my attempts guessing on this and got it wrong all times so 9 is the last answer
Answer:
3 deliveries per hour
Step-by-step explanation:
![\frac{15}{5} = 3 \: deliveries \: per \: hour](https://tex.z-dn.net/?f=%20%5Cfrac%7B15%7D%7B5%7D%20%20%3D%203%20%5C%3A%20deliveries%20%5C%3A%20per%20%5C%3A%20hour)
The 6 terms of the series are
... 15, 14, 13, 12, 11, 10
The sum of them is 75.
_____
You could make use of the formula for the sum of the terms, or you could work out the sum from the given expression. It is easier just to list the terms and and them up.