Answer:
204
Step-by-step explanation:
4/5(720-240)-180
4/5(480)-180
4*480/5-180
1920/5-180
384-180
204
Answer:
Step-by-step explanation:
radius 70/2=35 cm
circumference=2πr=2π×35=70π cm
time taken to complete one revolution=0.8 s
or distance covered in 0.8 s=70π
distance covered in 1 s=70π/0.8=700 π/8=175 π/2 s=87.5 π≈274.9 cm
speed=274.9 cm/s=2.749 m/s
Answer:
d = 5t + 20
Step-by-step explanation:
d represents the distance and t represents the time, in hours
Let he equation which model this situation ⇒ d = a t + b
Where a and b are constant.
Let the gas station is the starting point
So, at gas station t = 0 , d = 20
∴ 20 = 0 * a + b ⇒ b = 20
When he reaches home 2 hours later notes that he has traveled 30 miles.
and with substituting with b = 20
∴ 30 = 2 * a + 20
2a = 30 - 20 = 10 ⇒ a = 10/2 = 5
∴ d = 5t + 20
The equations that can be used to model this situation <u>d = 5t + 20</u>
To find the answer, multiply the decimal by 10. 0.05 X 10 = 0.5, and since 0.05 goes into 0.5 10 times, it is equivalent to 1/10th of 0.5.
Answer:
2 builder complete work = 155 days
Step-by-step explanation:
Given:
5 builder complete work = 62 days
So,
1 builder complete work = 62 days × 5
if,
2 builder complete work = [62 days × 5] / 2
2 builder complete work = 155 days
