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Svetllana [295]
3 years ago
13

Yesterday, the snow was 2 feet deep in front of Archie’s house. Today, the snow depth dropped to 1.6 feet because the day is so

warm. What is the percent change in the depth of the snow?
The percent change in the depth of snow from yesterday to today is
%
Mathematics
1 answer:
fredd [130]3 years ago
3 0

Answer:

20%

Step-by-step explanation:

2-1.6=0.4

0.4/2x 100

40/200=1/5 or 20%

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ira [324]

check the picture below.


M is perpendicular to AB and ∈ AB, and stemming from point L.


N is perpendicular to BC and ∈ BC, and stemming from point L as well.


BL is the bisector, that means the angle at verte B, gets cut into two equal halves.


now, we know what ∠CLN =3∠ALM, namely that ∠CLN is 3 times greater than ∠ALM.


so, once the bisector kicks in, you get two angles of 20° each, the angles at M are 90° each and the angles at N are 90° each as well, that pretty much narrows down what the missing angle is in triangles MBL and NBL, so is 70°.


now, the little sliver angles at CLN and ALM are on a 3:1 ratio, so, the flat-line of AC affords us 180°, subtract the 140°, so CLN and ALM will have to share only the remaining 40°, and they have to do so on a 3:1 ratio, that leaves us with, notice the blue angles.


now, from the triangles ALM and CLN, you can pretty much tell what the missing angle is, and those are the values for angles A and C.


Read more on Brainly.com - brainly.com/question/6781441#readmore

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3 years ago
Solve the simultaneous equation y-2x+1=0 and 4x^2+3y^2-2xy=7
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we get,

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The two requirements for a proportional relationship are: The ratio of the two variables maintain the same ratio.

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