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never [62]
3 years ago
9

Kali left school and traveled toward her friend’s house at an average speed of 40

Mathematics
1 answer:
ioda3 years ago
3 0
Matt needs to travel 3 hours. 
If 40km=1 hour
   400km=? But there are two distances
200/40*1=5 hours
Therefore Kali needs to travel 5 hours to be 200 km away from the house.
If 50km=1 hour
200km=?
200/50*1hr=4hrs Therefore Matt needs to travel 4hrs to be 200 km away from the house. But Kali traveled 1hr earlier than Matt. 4hrs-1hr=3hrs
Therefore Matt has to travel for 3 hours to be 400km away from Kali.
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What is 2\3y plus y minus 4 equals 31
steposvetlana [31]

Hi


2/3 y+y-4=31

Simplify both sides of the equation

2/3 y-4=31

Combine like terms

(2/3 y+y)+(-4)=31

5/3 y-4=31

Add 4 to both sides

5/3 y-4+4=31+4

5/3 y=35

Multiply both sides 3/5

(3/5)*(5/3 y)=(3/5)*35

y=21


I hope that's help !

8 0
3 years ago
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The soccer club has planned a trip to a tournament. The cost of the van is $192. When 2 students who are not members of the club
Anon25 [30]
Let
N--------> <span>members of the club

we know that
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N=185.60/3.20
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the answer is
58</span>
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True OR False:<br><br> 105 is the square root of 455
Klio2033 [76]

Answer:

false

Step-by-step explanation:

it is 21.33

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3 years ago
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Choose the equation below that represents the line passing through the point (−2, −3) with a slope of −6.
Daniel [21]
Y=mx+b where m=-6, x=-2, and y=-3. Substituting these values in would result in -3=(-6)(-2)+b, which would simplify to -3=12+b, and further to b=-15. This would mean the y intercept is equal to -15, or (0,-15). To check, (-6)*(-2)-15 is in fact equal to -3, thus allowing easy identification of a graph, which will cross the y axis at -15 and decrease in y-value by 6 with every increase in x-value.
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Line M is represented by the equation -2/3+8. Line W is perpendicular and passes through the point (4,3)
goblinko [34]

Answer:

y= -3/2x+9

Step-by-step explanation:

Well we have to know that to find a line perpendicular to a given line, you have to have opposite slopes. So that makes the equation begin as y=-3/2x because it's opposite of y=2/3x. Then we have to make sure it goes through the point (4,3). To do that, I tweaked the numbers in my graphing calculator and it worked with 9! So the equation is y= -3/2x+9

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3 years ago
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