Answer:
Total area: 9/5 square cm, or in decimal form 1.8 square cm
Step-by-step explanation:
Notice that each sticker is 1/2 cm by 3/5 cm, therefore they area is 1/2 times 3/5 = 3/10 square cm.
since she uses 6 of them, we need to multiply the area of each by 6 in order to get the total area:
6 times 3/10 = 18/10 square cm = 9/5 square cm or in decimal form 1.8 square cm


This is a way to factoring trinomials (there exist different equivalent methods).
Multiply the trinomial but the term accompanying
. This is the second line. Then, you could take the square of the
, ant try to create a factor () () that will correspond to the expression in the second line. That is, we want 
In ? we put the corresponding numbers that, if we multiply them we will obtain 42, and if we add them we will obtain 13. This numbers are 6 and 7. Then, we have 
The last step is divide by the number that we multipy in the first step.
No solution because you can’t even out both sides
it is 3 because if it has infinte solutions than it is = to 0 and 1 and infinite solutions
Answer:
x=-2
Step-by-step explanation:
5x -10x- 30= 10x
-5x -30 = 10x
-30=15x
x=-2