3 years ago

45 miles per hour ? miles per minute

Mathematics

2 answers:

hjlf3 years ago

8 0

if its 45 miles per hour then, 0.75 mile/minute.

fenix001 [56]3 years ago

6 0

Answer:

1.334 miles per hour

Step-by-step explanation:

There are 60 minutes in an hour

So divide 60 by 45

and you would get 1.334

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Elena and Lin are trying to solve 12x+3=72x+5. Describe the change they each make to each side of the equation.

algol13

Answer:

No Solution

Step-by-step explanation:

12x + 3 = 72x + 5

subtract 12x from both sides

end up with

3 = 72x - 12x + 5

subtract 12x to 72x

3 = 60x + 5

-5 from both sides

-8 = 60x

since x is a bigger number the answer would be NO SOLUTION

12x + 3 = 72x + 5

I do not understand lins logic

x + 6 = 7x + 10

subtract 6 from both sides

x = 7x + 4

move 7x to the other side

7x = 4

divide 7

x = 0.5

Also wrong because I get how lin got that answer

My way

12x + 3 = 72x + 5

-12 x from both sides

3 = 60x + 5

+5 to other side

8 = 60x

if the x was on the other side it would make sense

but it is not so the Answer is NO SOLUTION

Hope this Helped :)

5 0

3 years ago