Answer:
I'm assuming we need to find the number of minute she as used. to do that we can right an inequality with m being the number of minutes
18+0.06m≥88.56
we then just solve this like we would with any other algebra equation, First we subtract 18 from both sides.
0.06m≥70.56
Then we dives by 0.06
m≥1176
Rania has used at least 1176 minutes
Answer:
1/20
Step-by-step explanation:
Hope that helped :))
Answer:

Step-by-step explanation:
Using the distance formula, we see that the distance between (-4,4) and (-7,3) is
.
You would use distributive property 5x(2×+x)+50
Answer:
<h2>140 minutes</h2>
Step-by-step explanation:
this problem focuses on the combined work rate
both can finish the work under 63 minute
let bobby mow the lawn in x minute
Billy will then mow the lawn in x-25 minutes
Let the completed job = 1 (a mowed lawn)
we can now apply the combined work formula for the two boys as
multiplying through by x(x-25 )we have

open bracket we have

rearranging and collecting like terms we have

we can now use the quadractic formula
a= 1
b= -151
c= 1575



the first answer x= 139.72 approximately 140 minutes mins is correct for Bobby's time
let us check

we can see that the solution approximates to 1