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mixas84 [53]
3 years ago
7

A train travels at 47 miles per hour. Which equation

Mathematics
1 answer:
garri49 [273]3 years ago
8 0

Answer:

d

Step-by-step explanation:

I think its d but I'm not quite sure

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Plzz help me im giving 12 points
Serggg [28]
This Is very simple.

30m + 50 = 20m + 100

This is the new equation needed to solve for m.
first we must isolate "m".

30m + 50 = 20m + 100
        - 50             - 50

30m = 20m + 50
-20m   -20m

10m = 50

divide both sides by 10 to isolate "m".

m = 5

hope this helps!





3 0
4 years ago
Solve the system of linear equations.
RoseWind [281]

Answer:

1. No solution

2. Infinite solutions

Step-by-step explanation:

1. To solve the system, set the equations equal to each other and solve for x.

2x - 5 = 2x + 7

-5 = 7

This is a false statement. This means there is no solution.

2. To solve the system, graph each equation.

y = -3/4 x - 5/2 has a y-intercept -5/2 and slope -3/4.

3x + 4y = -10 converts to y = -3/4x -5/2.

This graphs as the exact same line. This system has infinite solutions.

4 0
3 years ago
Find the value of x in the equation √ x + 5 = √ x + 45.
Ivanshal [37]
There is no solution since 5 doesn't equal 45
8 0
3 years ago
180 red marbles to 145 blue marbles <br> ratio
Ket [755]

Answer:

36 : 29

Step-by-step explanation:

Require to simplify the ratio

180 : 145

Divide both parts by 5

= 36 : 29 ← in simplest form

Simplest form means that no other number but 1 will divide into the 2 parts of the ratio.

6 0
3 years ago
4 times the measure of the complement of an angle is equal to / the measure of the original angle's supplement. What is the meas
WINSTONCH [101]
72 degrees if its 2/3
6 0
3 years ago
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