Answer:
Step-by-step explanation:
14 -3x < -1, subtract 14 from both sides
-3x < -1 -14, combine like terms
-3x < -15, <u>divide both sides by -3 </u>
x > 5
! when solving inequalities if we <u>multiply or divide by a negative number</u> the sense of inequality changes.
A. semi
Step-by-step explanation:
I hope this helps you
Answer:
240
Step-by-step explanation:
30%of what number is 72
of means multiply and is means equals
30% * W = 72
Change the percent to a decimal
.30 *W = 72
Divide each side by .30
.30W/.30 = 72/.30
W =240
The number is 240
Answer:
10
Step-by-step explanation:
every day he doubles the number of sold cars compared to the previous day.
so the sequence goes along the powers of 2 :
1
2
4
8
16
32
64
128
256
512
1024 - so, latest here, of course, at least 1000 cars were sold. that would be day 11.
but - maybe we reached the total of 1000 cars already before that.
as you can see, the number of cars sold on a day is 1 bigger than the sum of cars sold on all previous days.
e.g. 8 = 4 + 2 + 1 + 1
64 ÷ 32 + 16 + 8 + 4 + 2 + 1. + 1
therefore, 1024 is bigger by 1 than the sum of the cars Sikhs before that day. so, that sum is 1023 and bigger than 1000.
so, with the 512 cars sold on day 10 he reached and surpassed the total 1000 sold cars mark.
27%
65/245 = 0.2653
Multiply 0.2653 by 100 to get the percentage = 26.53%
Rounding to the nearest whole percent = 27%