Solve pls brainliest
1 answer:
You might be interested in
Answer:
Colleen alone to clear the yard of leaves in 40 minutes
Step-by-step explanation:
P.S - The exact question is -
Given - Seas and Colleen are raking leaves in their yard. Working together they can clear the yard of leaves in 24 minutes. What kind of long it would take Sean 20 minutes longer to clear the yard dinner with Colleen working alone
To find - When c is the number of minutes it would take Colleen to finish the job when working alone, the situation is modeled by this rational equation: How long would it take Colleen alone to clear the yard of leaves?
Proof -
Given that the equation is -
As time can not be negative
So,
we get
c = 40 minutes
∴ we get
Colleen alone to clear the yard of leaves in 40 minutes
Answer:
The temperature increased until 4:00 p.m. ⇒ true (1st)
The temperature decreased after 6:00 p.m. ⇒ true (3rd)
The temperature increased more quickly between 12:00 p.m. and
4:00 p.m. than before 12:00 p.m ⇒ true (5th)
Step-by-step explanation:
"<u><em>I have added screenshot of the complete question as well as the diagram</em></u>"
- <em>Lets use the graph to answer the question</em>
∵ The time of the graph recorded after mid-night
∵ 4:00 p.m. means 16 using 24-hour system (4 + 12 = 16)
∵ From the graph the temperature increased from 8 till 16
∴ The temperature increased until 4:00 p.m. ⇒ true
∵ Horizontal line in the graph means there is no change in the
temperature from 16 to 18
∵ 16 means 4:00 p.m. and 18 means 6:00 p.m.
∴ The temperature was not recorded between 4:00 p.m. and
6:00 p.m. ⇒ not true
∵ The temperature at 18 (6:00 p.m.) = 8°F
∵ The temperature at 20 (8:00 p.m.) = 4°F
∴ The temperature decreased after 6:00 p.m.
∴ The temperature decreased after 6:00 p.m. ⇒ true
∵ The temperature increased from 8:00 a.m. to 12:00 p.m. by 4°F
∵ The temperature increased from 12:00 p.m. to 4:00 p.m. by 8°F
∴ The temperature increased and then decreased before holding
constant. ⇒ not true
∵ The rate of increased of the temperature from 12:00 p.m. to 4:00
is 8°F/(16-12)hours = 8/4 = 2°F per hour
∵ The rate of increased of the temperature before 12:00 is
4°F/(12-8)hours = 4/4 = 1°F per hour
∴ The temperature increased more quickly between 12:00 p.m.
and 4:00 p.m. than before 12:00 p.m ⇒ true
