Answer:
Step-by-step explanation:
Four times a number (let's call this x) is added to twelve. In other words, this is:
Now, this <em>entire</em> thing is divided by seven times a different number (let's use y) minus twenty-eight. So:
Let's put it into a fraction to simplify. Remember that dividing something by something else is the same as putting it over fraction. Thus:
And we're done!
Answer: 5km per hour
Step-by-step explanation:
You'd do 20/number of hours so you get 1 hour and you'll get his walking speed
Answer:
see the explanation
Step-by-step explanation:
Let
x ----> the number of adult size costume that Beavers and Sons makes per day
y ----> the number of child size costume that Beavers and Sons makes per day
we know that
Beavers and Sons needs to make at least 3 child costume and the company can only make 13 costumes per day
so
----> inequality A
----> inequality B
You can not make a negative number of adult costumes.
so
----> inequality C
The company can only spend $600 on costume production
so
----> inequality D
therefore
The inequalities for this problem are
----> inequality A
----> inequality B
----> inequality C
----> inequality D
This exercise is asking you to find the value of x or solve for x, to do so you have to isolate or leave x alone by doing different mathematical operations according to the given equation.
The given equation is -x=3-4x+15, which is a three step equation meaning that in order to solve for x you have to perform three different mathematical operations, in this case combining of like terms, addition, and division.
-x=3-4x+15 Combine like terms
-x=-4x+18 Add 4x in both sides
3x=18 Divide by 3 in both sides to isolate x
x=6
The value of x in the equation is 6 or letter C from the given choices.
No, u cant. Because they are not like terms
Examples :
1 + 2v....cannot add or subtract because they are not like terms
2v + 4v = 6v...u can if they have exactly the same variable
3x^2 + 2x...cant
x^2 + 4x^2...can...= 5x^2
3 + 3 ....can
2 + 5x...cant
now u can multiply and divide one...u just cant add or subtract them