Answer:
7 1/2 days
Step-by-step explanation:
The carpenter can do 1/5 of the work in 1 day. The assistant, who takes 'a' days to do the work, can do 1/a of the work in 1 day. Together, they can do 1/3 of the work in 1 day:
1/5 + 1/a = 1/3
1/a = 1/3 -1/5 = 2/15
a = 1/(2/15) = 15/2 = 7.5
The assistant takes 7.5 days to do the work alone.
Answer:
75% (Letter grade = C)
Step-by-step explanation:
- 15 ÷ 20 = 0.75
- Multiply by 100: 0.75 × 100 = 75
- So, your grade was a 75% (letter grade = C)
Answer:
r + c ≤12
r > 3
c > 2
Step-by-step explanation:
Jennifer is putting together a selection of flowers that has at most 12 flowers in it.
r = number of roses she uses
c = the number of carnations
At also means Less than or equal to.
It is represented by ≤
She is choosing either roses or carnations. She wants to pick at least three roses
r > 3
and at least two carnations.
= c > 2
Therefore, the system of inequality that represents this scenario is written as:
r + c ≤ 12
r > 3
c > 2
Hi there!
Keep in mind that even though there is a number outside of the parentheses, you only use the distributive property of multiplication when the numbers inside the quantity are not being multiplied or divided by each other.
That means we need to multiply what is in the parentheses before multiplying what lays outside of them.
675 * 0.0025 = 1.6975
Now multiply 1.6975 times 24.17.
1.6975 * 24.17 = 41.028575.
And there you go!
Round, if necessary.
:)