Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
Answer:
p = - 9
Step-by-step explanation:
Given
- 1 + 5p = - 10 + 4p ( subtract 4p from both sides )
- 1 + p = - 10 ( add 1 to both sides )
p = - 9
Answer:
34
Step-by-step explanation:
We know the straight line is equal to 180°, and the three angles that make it are (x+12),100°, and x. We can use the equation 180=(x+12)+100+x to find x.
180=(x+12)+100+x
We can remove the parentheses and combine x plus x to 2x.
180=100+2x+12
100+12=112
so
180=112+2x
-112 -112
68=2x
÷2 ÷2
34=x
Could be 154. 154 rounded to nearest ten= 150, rounded to nearest 100= 200
