N= night c= child
sandy= $10+$5c
kimmi= $25n
if sandy babysits 3 children for one night they will both be the same price
sandy= $10+5(3)=$25
kimmi= $25
Answer:
In 9 days will the second warehouse have 1.5 times more coal than the first one
Step-by-step explanation:
The coal left in warehouses after x days can be found using the equation:
- first warehouse: 185 - 15x
- second warehouse= 237-18x
Let the second warehouse have 1.5 times more coal than the first one after n days then
- 1.5 ×(185 - 15n)=237-18n which gives:
- 277,5-22,5n=237-18n and
- 40,5=4,5n
- 9=n
Answer:
no i cant help
Step-by-step explanation:
i just need points
Answer:
Both expressions are = to 11 when x is 2.
Therefore, the expressions are equivalent.
Answer:
25 miles per hour
Step-by-step explanation:
Given
The joint variation can be represented as:
Where:
Required
Find V, when: 
We have:
Express as an equation
Where k is the constant of variation
Make k the subject
When:
We have:
When:
We have:
Substitute: and
Make V the subject
