Answer:
Step-by-step explanation:
9x+8x+5+11= 17x+16
-5x-2x-7+6= -7x-1
-x-5x-9-4= -6x-13
3x-x-4+7= 2x+3
7x-5x+4-5= 2x-1
2x+7x-3+11= 9x+8
-4x+6x-5-8= 2x-13
12x-2x-14-3= 10x-17
5x-5x+4-12= -8
Hope this helps (brainliest is appriciated)
Answer:
-6 7/hr= -6F per hour
Step-by-step explanation:
a rate of change can be defined as:
R=(total change in some quantity) (time in which the change happened)
In this case we know that the temperature dropped -30F in a given time, then we already know that:
Total change in some quanity =-30F now we know that this change took place between the 1:00pm and the 7:00 pm the total amount of ime between these two hours is:
T= (7.00 - 1.00 hr)= 6.00 hr
this means that the change happened =6 hours.
then we can replace these values in the above equation to get:
R=(-30F)/(6hr)=-6F/hr
this means that for each hours that passes the temperature decreases 6F
we also can write that this rate as:
R=-6F/HR =-6F per hour.
5s + 5l = 155, 10s + 12l = 346
Solve for s in the first equation.
5s = 155 - 5l
s = 31 - l
Substitute s into the second equation.
10(31 - l) + 12l = 346
310 - 10l + 12l = 346
310 + 2l = 346
2l = 36
l = 18
Substitute l into the first equation.
5s + 5(18) = 155
5s + 90 = 155
5s = 65
s = 13
s = 13, l = 18
Answer:
0.375
Step-by-step explanation:
Answer: 1 7/10
Step-by-step explanation: u add 1 3/10 and 2/5
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