brandonholden
17.07.2019 •
Mathematics
Arectangle has an area of 221 square units. the width of the rectangle is 13 units. the length of the rectangle is 3x + 2. what is the measure of the rectangle's length?
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Ответ:
13 times 3x+2 = 221 so solve by dividing 221 by 13= 17.
Now we know that 3x+2= 17 so 3x= 15
x=5
Ответ:
9514 1404 393
18, 21
Step-by-step explanation:
Let x represent the smaller number. Then x+3 is the larger number, and the other relation between them is ...
3(x+3) = (7/10)(5x)
6x +18 = 7x . . . . . multiply by 2 and simplify
18 = x . . . . . . . . . . subtract 6x
The two numbers are 18 and 21.