Answer:
b
Step-by-step explanation:
Which table of ordered pairs represents a proportional relationship
Answer:length =7⅓
Width =14⅔
Step-by-step explanation:
Take length as x
And 2x as width
Perimeter as 44
Formula to get perimeter of a rectangle is 2l+2w
X+x+2x+2x=44
6×=44
X=7⅓
Length =x and x = 7⅓ so width =7⅓ while width =14⅔
A=1/10, b=1/12, c=1/15 (these are the rates for each worker...)
1.)
2(1/10)+4(1/12)+t/15=1
1/5+1/3+t/15=1
(3+5+t)/15=1
3+5+t=15
8+t=15
t=7
So it would take c 7 hours to finish the job.
2.)
1/40-1/60
(3-2)/120
1/120
The drain rate is 1/60. So you will need to find t when the tank is empty, while starting at 2/3 capacity...
2/3-t/60=0
(40-t)/60=0
40-t=0
t=40
It would take 40 minutes to empty the tank when it is 2/3 full.
<h3>
Answer: C) increase from 45 degrees to 50 degrees</h3>
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Explanation:
Let's calculate the angle B based off the arcs CDF and GHJ
B = (far arc - near arc)/2
B = (arc CDF - arc GHJ)/2
B = (130 - 40)/2
B = 90/2
B = 45
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Now let's change GHJ to 30 degrees, while keeping the other arc the same.
B = (far arc - near arc)/2
B = (arc CDF - arc GHJ)/2
B = (130 - 30)/2
B = 100/2
B = 50
Angle B has increased from 45 degrees to 50 degrees.
Answer: B
Step-by-step explanation:
For this problem, to solve for x, you want to move all like terms to one side.
Now that you have moved like terms to one side, you can directly add and subtract to combine like terms.
x=-4