A certain number is three more that five times another number. The difference of the two numbers is 11

Mathematics

1 answer:

Slav-nsk [51]3 years ago

5 0

Answer:

The number would be 2.

Step-by-step explanation:

I set up an equation 5x+3, and x. So since it's a difference we know that we have to subtract, so I subtracted the two expressions, and set that equal to 11.

Solve 5x+3-x=11

Answer 4x=8, x=2

Hope this helps, if does hit the Thanks button!

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Please help if you can!!!!

storchak [24]

Answer:Well, I don't know what you got so I can't tell you if it is right.

If it works in both equations, it depends of whether your equations are set up correctly.

Here is how I would do this problem.

Let x = no. of hot dogs,y = number of sodas.

First equation is just about the number of things.

x + y = 15

Second equation is about the cost of things.

1.5 x + .75 y = 18

solve x+y = 15 for y y = 15-x substitute into second equation

1.5x + .75(15 - x) = 18

You should get the correct answer for number of hot dogs if you solve this correctly. Put your answer in the x + y =15 equation to get y. Then put both x and y into the cost equation and check your answer.

Hope this helps.

Step-by-step explanation:

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2 years ago

Find the distance labeled x in the diagram.

zheka24 [161]

Answer: B

Step-by-step explanation:????

Troll

6 0

3 years ago

Which equation is the result of adding these two equations -2x+4y=17