81 times a number minus 77 is equal to -77 less than the number 81x-77=x-77
Total amount of grey blocks is 55 so divide that by the amount of columns it’s being divided into. The answers 5.
Let's represent that number as X:
6(9+2X) = 5X + 12
54 + 12X = 5X + 12
7X = -42
X = -6
Answer:
d = 0.4
Step-by-step explanation:
Given
- 10(d + 1) = - 14 (divide both sides by - 10 )
d + 1 = 1.4 ( subtract 1 from both sides )
d = 0.4