Answer:
(0.118, 4.882)
Step-by-step explanation:
If a motorist drives for m hours at 120km/hr, then the Distance of the motorist is expressed as;
Distance = Speed * time
da = 120m
If he drives n hours at 18km/hr;
db = 18 * n
db = 18n
Speed of the motorist altogether is expressed as;
Speed =78km/5hrs
Speed = 15.6km/hr
SInce the total distnce is 78km
120m + 18n = 78 ....1 ..... * 1
If total time is 5hrs
m + n = 5....2 ...*18
Solve simultaneously
120m + 18n = 78
18m + 18n = 90
Subtract
120m - 18m = 78-90
102m = -12
m = 0.118 hrs
m =
Since m + n = 5
n = 5 - m
= 5 - 12/102
n = 4.882
Hence (m,n) is (0.118, 4.882)
Answer:
(x+7)
Step-by-step explanation:
(x+7)(2x+1)=2x^2+14x+x+7=2x^2+15x+7
Answer:
i think point c GL
Step-by-step explanation:
Answer:
![t = wR_p [R_p = 1.05]](https://tex.z-dn.net/?f=t%20%3D%20wR_p%20%20%20%20%20%20%20%20%20%5BR_p%20%3D%201.05%5D)
Step-by-step explanation:
<em>For the case of victor: </em>, let total cost be 
and total weight be 
.
So the price rate per 1 pound of blueberries should be,
<em>For general case: </em>1 pound costs 
so 
pound costs 
pounds. So the equation should be,
Answer:
w≤-24
Step-by-step explanation:
