1 3/5 or in other words second choice
Answer:
Number of hours= (Total earnings+ Total costs)/$15
Mika worked 18 hours
Step-by-step explanation:
Mika´s earnings function is:
Total earnings= Total Payment-Total costs
The total payment depends on the number of hours Mika took to pint the neighbor's fence:
Total earnings= $15x-Total costs
Now we transform this equation to know the number of hours worked:
Total earnings+Total costs= $15x
(Total earnings+ Total costs)/$15=x
x= $174+$96/$15
x= 18
Mika worked 18 hours
Answer:
168 books
Step-by-step explanation:
Given
of the remaining books
Required
Determine the total number of books
If the proportion of the English books is 3/8, the the remaining is:
Take LCM
From the question, we understand that:
of the remaining books
This means:
From the question, we also understand that 75 are Chinese books.
The total number of books can then be calculated using:
Substitute 75 for Chinese
Make Total the subject:
Answer:
x = 1
Step-by-step explanation:
The easiest way to solve this is to graph it.
f(x) = 2^x + 1
g(x) = -x + 4
just reading the graph, the intersect point is (1,3).
- Red: f(x)=2^x + 1
- Blue: g(x) = -x + 4
I cannot see any simple way of doing this other than by graphing.
Answer x = 1