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serious [3.7K]
3 years ago
12

The speed of train a is 16 mph slower than the speed of train

Mathematics
1 answer:
xenn [34]3 years ago
3 0
Let n be the speed of train b, and n-16 be the speed of train a. Then:
190/n-16=270/n
190n=270n-4320
80n=4320
n=54 mph
n-16=38 mph
☺☺☺☺
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Special right triangles
blondinia [14]
In the question you provided above what do you mean can you please give more details.


7 0
3 years ago
Read 2 more answers
Can you please help me with this problem?
Hoochie [10]
Here you have to find which each variable is, for this you start of picking one equation,

x + 2y + 6z = 4
-3x + 2y - 2 = -4
4x + 2z = 16

depending the equation you pick you multiply that by a certain number that will give you the opposite of one of the other equations,
-1(x + 2y + 6z = 4)
= -x -2y - 6z = -4

With this you add or subtract it with the equation that has the same number or variable, or both,
In this case it will be the equation,
-3x + 2y + 6z = 4
You can use this one or the third equation since both have a positive 2y which will cancel with -2y from the new equation,
-x - 2y - 6z = -4
-3x + 2y -z = -4

= -4x -7z = -8
Now you since you just eliminated the variable (y) you now have 2 variables, and the last equation has only 2 variables, meaning now you find the answer to those to equations,

-4x -7z = -8
4x + 2z = 16

= -5z = 8
Now leave the variable by itself,
z = 8/5
Now you found the variable (z), with this just substitute on one of the equations we used to find (z) so you can find (x), after that substitute those answered to on of the original equations so you can find (y)




6 0
3 years ago
How do i write 11 5/8 as an improper fraction
FinnZ [79.3K]
11 5/8 as a improper fraction 

1) Simplify Fraction 
⇒ Multiply denominator with whole number
8 x 11 = 88

⇒ Answer of multiplication and add the numerator 
88 + 5 = 93 

93/8 is improper Fraction. 


8 0
3 years ago
Read 2 more answers
-7(-2x - 3) = 35<br>x=?<br><br>-8(4x + 3) = 40<br>x=?<br><br>2(8 - 5x) = -44<br>x=?
STALIN [3.7K]
Use distributive property: multiply the number outside the bracket by each number inside it

1. 14x+21=35 14x=14 x=1
2. -32x-24=40 -32x=64 x= -2
3. 16-10x=-44 -10x=-60 x=6
5 0
3 years ago
A circular pond has a radius of 35 feet. What is the diameter of the pond?
SVEN [57.7K]

Answer:

I believe the radius is half the circle which makes the diameter 2x the radius which is 35+35= 70

4 0
2 years ago
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