The 4th grade class is taking a field trip with 38 people. They use a total of 8 vehicles. Each car holds 4 passengers and each minivan holds 6 passengers. How many of each type of vehicle did they have?
I will give medals to anyone who types!
Hello.
I will help.
ok
Show every step please
Well you know how many people are going and how many cars they are taking
yes but, you have to give me the answer and show every single step and I will give a medal and be your fan!
Luca, don't try to bribe us like that. I'll help you, don't fan or give me a medal unless I get you the right answer.
Ok -_-
Well a possible answer could be 5 vans and 2 cars
Explain AJM
I know it's just how would you do the equation.
Well what i did was subtract from 38 and use how many you could fit into a car or van
x + y=8 4x+6y=38 are the two equations.
38 8 cars = 16 5 vans = 30 So no AJm
Oh, that helps a lot luca :D
np :D
x + y = 8 4x+6y=38 First solve for x
please show each step in on comment
one* sorry
-6x - 6y = -48 (set the top equation to be multiplied by -6 so y cancels out)
-6x - 6y = -48 4x + 6y = 38
well we cant just GIVE you the answer, that would get you nowwhere
Now you will use vertical addition.
-2x = -10
Now you isolate x. x = 5
Now that we have x, we can solve for y.
4 + y = 8
That would be plugging x into the equation
then isolate y (although it's easy to see what it is already)
y = 8 - 4
y = 4
Oops I plugged it in wrong lol
x = 5 5 + y = 8 So y = 3
So 3 vans and 5 cars.
yeag
x + y=8 4x+6y=38 X represents cars and Y represents minivans. x + y=8 -x -x Y=8-x 4x+6( 8-x ) =38 4x+48-6x = 38 Add -6x to 4x. -2x+48 = 38 Then subtract 48 to both sides. -2x = -10 Divide -2 to both sides and since the other side is a negative the answer would be a positive. -10/-2 = 5 We don’t know “y” yet so you would subtract what you got for “x” by 8. 8-5=3 X= 5 Y=3 They would need 5 cars and 3 minivans.
@jcpd910
is that good?
Yes, correct.
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