Can someone help me do this ?how do i solve for Y
Answers
move y by itself
7x+5y=20
minus 7x from both sides
7x-7x+5y=20-7x
0+5y=20-7x
5y=20-7x
divide both sides by 5
5y/5=(20-7x)/5
y=(20-7x)/5
y=(20/5)+(-7x/5)
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Answers
Answer:
Total number of virus after 7yrs= 247484.7 virus
Step-by-step explanation:
Total number of virus after 7yrs = 2573(1+0.92)⁷ = 247484.7 virus
Answers
Answer:
y=13/4 x -21
or in khan 13/4x - 21
GIMMIE BRAINLIEST OR SOMETHING
Work:
Slope = 5-(-8)/(8-4)
=13/4
So the equation is y=13/4x + b
plug it in and the equation is
y=13/4 x -21
Answer:
13/4 x-21
Step-by-step explanation:
:D
Answers
Answer: B) 6 minutes
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Explanation:
Let's find the slope of the table. This will tell us the rate of change.
m = slope
m = (y2-y1)/(x2-x1)
m = (25250 - 26375)/(2 - 1) .... I used the first two rows
m = -1125/1
m = -1125
The slope of -1125 means the plane's altitude is decreasing at a rate of 1125 feet per minute. This is the descent speed.
Since we're told the initial altitude was 27500 ft, this means b = 27500
This means y = mx+b turns into y = -1125x+27500
x is the number of minutes and y is the altitude at time x
As a way to check this, plug in various x values of the table. You should get corresponding y values that match the table. I'll let you do this part.
------------------
Now plug in y = 16250 and solve for x
y = -1125x+27500
16250 = -1125x+27500
-1125x+27500 = 16250
-1125x = 16250-27500
-1125x = -11250
x = -11250/(-1125)
x = 10
It takes 10 minutes after the descent period has started, for the pilot to get to 16,250 ft.
Since the pilot was contacted at the x = 4 minute mark, this means 10-4 = 6 minutes is the duration needed for the pilot to go from 23,000 ft to 16,250 ft.
Answers
Answer:
It is given that , Parallelogram ABCD is dilated to form parallelogram EFGH.
When Dilation of a geometrical shape takes place, the two→→image and Pre image will be Similar.
Parallelogram ABCD ~ Parallelogram EFGH
Since Similar shapes have , Proportional side Lengths as well as length of their Diagonal will be proportional.
So, Segment FG will be proportional to Segment BC.
The answer is gh i took the test and got it right
Answers
So 5 kilometers means 5 1000 meters, thus it is equal to 5,000 meters.
1 km = 1000 meters
5 km * 1000 m / km = 5 * 1000 m = 5,000 meters
1 m = 0.001 km
5 km * 1m/0.001km = 5 m / 0.001 = 5,000 meters
Answers
Answer:
Step-by-step explanation:
eq of first degree is a linear equation.
y=x+1