<span>copper +copper = copper
0.14x+0.24(100-x) = 0.20*100 = 20</span>
First, turn the fractions into mixed numbers.
21/4 - 27/8
Then. make the denominators the same.
4 * 2 = 8
21 * 2 = 42
42/8 - 27/8
42 - 27 = 15
15/8
15/8 = 1 7/8
Answer:
Yes. They are proportional.
Step-by-step explanation:
The left side 0.777 is equal to the right side 0.777, which means that the given statement is always true.
True
Answer:
6 items of each type in each box
Step-by-step explanation:
Answer:
88 cm²
Step-by-step explanation:
The perimeter of each square is 22 cm
we should divide by 4 to get the length of the square
22/4=5.5 cm
so we should multiply by 2 to get the length of the rectangle
5.5*2= 11
the perimeter is :
P= 5.5+5.5+5.5+11+11+5.5+5.5+11+11+5.5+5.5+5.5 = 88 cm²
