Answer:
x = 5
Step-by-step explanation:
As it is parallelogram And we can see the diagonals bisect each other and are divided into equal parts so
2x = 15 - x
2x + x = 15
3x = 15
x = 15 / 3
x = 5
Answer:
325
Step-by-step explanation:
40/100=130/x
Cross multiply to find x
40x=13000
/4 /4
x=325
You can use mental math to perform the following addition by knowing that certain numbers equal a certain number. for instance, you know that 9+2 is equal to 11. you don't need a calculator to solve that. then you know that 1+8 is equal to 9.since you are adding 11 you know that the answer is 19. you can use that to answer to following equation.
3(x-4) also known as three times the quantity of 4 less than a number
