Answer:
10x + 20
Step-by-step explanation:
ok 1st you know whatever you do the sides you gotta do to the side across from it so 1st easy thing is add the 2x values from the sides then your 3x+10 multiply it by 2 thats your answer then add the value up
Answer:
X= -2
Step-by-step explanation:
2(x-4)=4(2x+1)
2x-8=8x+4
-8=6x+4
-12=6x
X= -2
x/7 has to be proportionate to 9.2/16.1 so find out how 7 relates to 16.1
16.1/7=2.3 and 7*2.3=16.1
then apply it to x and 9.2
9.2/2.3= 4 and 4*2.3=9.2
So, x=4
Between 21 and 22, and between 63 and 64. Hope this helps.
Answer:
The percentage of workers not wearing the helmets is 5.3 %.
Step-by-step explanation:
A safety committee randomly examined 900 construction workers during their work, and found that 48 workers were not wearing helmets. Estimate the percentage of workers who do not wear protective masks during their working time with 98% confidence
total workers = 900
Not wearing helmet = 48
Percentage which are not wearing the helmets
= %