Answer:
a) 3 people will need 35 days to paint the bridge
b) p=105/t
Step-by-step explanation:
a)
We have 7 people each one is to work 15 days, so the bridge needs a total of 7(15) days of work
7(15)=105
Then we have 3 people each one is to work t days, altogether should do a total of 105 days of work
3(t)=105
Solve for t
t=35
b)
Substitute p for 3 in the second equation
p(t)=105
Solve for p
p=105/t
¢30 every day because 10divided by 3 is .3
Answer:
<u>The correct answer is D. 4.55</u>
Step-by-step explanation:
1. Let's check the information given to resolve the question:
What is the approximate value of 2π-√3?
2. Replacing the equation with the values:
π = 3.1416
√3 = 1.7321
2π-√3
2 (3.1416) - 1.7321 = 6.2832 - 1.7321 = 4.5511
4.55 (Rounding to two decimal places)
<u>The correct answer of 2π - 3 is D.4.55</u>
Answer:
( - ∞, ∞)
Step-by-step explanation:
Any value of t makes the interval notation ^^^