30+[(6÷3)+(3+4)]
Answer:
X=9
Step-by-step explanation:
Open the bracket first
10(x+4)-3=14x+1
10x+40-3=14x+1
Let's collect like terms
10x-14x=1-40+3
-4x=-36
Let's make x the subject of formula by dividing both sides by-4
X=9
Therefore the final answer for x is 9
How many rows of the beads are used on the bookmark?
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Answer:
Step-by-step explanation:
To know the number of rows of the beads are used on the bookmark, we just need to divide.
Notice that the bookmark is 20 centimeters long, and each bead is 4 milimiters. In order to divide, we need to transform centimeters to millimeters.
We know that 1 centimeter is 10 millimeters, that means 20 centimeters is 200 millimeters.
Then, the division is
Therefore, there are 50 beads on the bookmark.