Answer:
a
Step-by-step explanation:
-5(x + 2) = -4x - 12 - x + 2
= -5x - 10
= -5(x + 2)
both sides are equivalent so there are infinite solutions
Answer:
400
Step-by-step explanation:
52 divided by 13 =4
4x100=400
Answer:
The equation is
![f(x) = [\frac{x}{13}]](https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5B%5Cfrac%7Bx%7D%7B13%7D%5D)
Where x is the ribbon's length in ft and with [a] we denote the integer part of a real number a.
Step-by-step explanation:
In order to obtain how many pieces of ribbon Lei can make, we have to divide the length of the Ribbon by the length of each piece, which is 13 ft. This means that if we have x ft of ribbon, then Lei can make a total of x/13 pieces.
However, if the result we obtain is not an integer we need to discard the last part of the ribbon that couldnt form and entire piece of 13 ft, therefore, after we divide x by 13, we also need to take the integer part of that division, that is, the biggest integer that is not bigger than x/13. With this information in mind, we obtain that the amount of pieces Lei can make is given by the following formula:
![f(x) = [\frac{x}{13}]](https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5B%5Cfrac%7Bx%7D%7B13%7D%5D)
Where [ a ] denotes the integer part of a real number a.
Answer:
the car is traveling 60 miles per hour
Step-by-step explanation:
Since it is going 30 miles in half an hour, we just need to double both values to find the speed for an hour
30*2=60
1/2*2=1
60 miles per hour
hope this helps pls give crown <3
Answer: x=4
Step-by-step explanation: Look at pic below to see how solved.