Answer:
4/9
Step-by-step explanation:
Finally, I can put my answer!
We can figure out how many times a heart beats in one minute (so we can figure out how many minutes it will take for 140 times) by dividing 700 by 10. This gives us 70. Now we know that a heart beats 70 times each minute. Now we know it would take 2 minutes for a heart to beat 140 times because 70×2=140.
Two minutes is the answer.
This is the concept of relative speed; We are required to calculate the speed of the car and the bicycle.
Distance between the car and Bicycle=374 miles
Time they met=5.5 hr
Speed traveled by bicycle=x
Speed traveled by car=x+33.4334
Relative speed=x+(x+33.4334)=(2x+33.4334) mph
Distance=speed*time
374=(2x+33.4334)*5.5
374=11x+183.8837
collecting like term we get:
374-183.8837=11x
11x=190.1163
thus;
x=(190.1163)/(11)
x=17.2833 mph
thus the speed of the bicycle was x=17.2833 mph
The speed of the car was (x+33.4334)=(17.2833+33.4334)=50.7167 mph
42% = 210
1% = 210 ÷ 42 = 5
100% = 5 x 100 = 500
500 people were surveyed.
Percent means part out o 100
30.75%=30.75/100=3.075/10=0.3075/1=0.3075
thousandth is 3rd place
for 0.1234, thousandth would be the 3
to round to thousandth, look one place to the right (to the 4), if that number is:
greater than or equal to 5, add 1 to the thousandth place (3 turns to 4)
less than or equal to 5, leave the thousandth place as is (3)
so
0.3075
7 is thousandths
5 is before it and is equal to or greater to 5
7+1=8
0.308 is answer