Answer:
a) 91 1/6 gallons
b) 2502 miles
Step-by-step explanation:
You are given a number of miles and a number of gallons for the car. The ratio of these numbers is ...
(261 mi)/(14.5 gal) = 18 mi/gal
We presume this value is constant for this car. Then the questions can be answered by forming and solving a proportion:
a) 1641 miles/(gallons) = 18 mi/(1 gal)
Multiplying by gallons and dividing by 18 mi/gal, we get
1641/18 gal = (gallons) = 91 1/6 gal
It will take 91 1/6 gallons of gasoline for Mary to drive to her friend's house.
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b) Same deal, but the miles are unknown.
(miles)/(139 gal) = (18 mi)/(1 gal)
Multiplying by 139 gal gives ...
(18 mi)·139 = (miles) = 2502 mi
139 gallons of gasoline will let Mary drive 2502 miles.
Given :
Each morning a gardener uses 25 gallons of water from a barrel.
Each afternoon, she adds 15 gallons of water to the barrel.
To Find :
By how much has the volume of water in the barrel changed after 5 days.
Solution :
Amount of of water used from the barrel per day is :
A = 25 - 15 gallons
A = 10 gallons
Now, volume of water in the barrel changed after 5 days is :
V = A × 5 gallons
V = 10 × 5 gallons
V = 50 gallons
Therefore, volume of water in barrel is changed by 50 gallons.
Answer:
A. h(x)= -5.86x^2 + 23.37x + 34
Step-by-step explanation:
If the scientist uses the same amount of pesticide on the two farms then the x's of the functions are the same.
Then, the combined yield
of the two farms is just the yield of the first farm plus the yield of the second farm:
.
Now, since

and
,
then

we add the coefficients of the corresponding terms to get:


Which is choice A.
The number of years it will take to earn his first million is 24 years
Average bi-weekly gross pay = $1,630
Bi-weekly = 2 weeks
Number of 2 weeks(bi-weeks) in a year = 26 bi-weeks
The least million he can earn is $1,000,000
Let the number of years = n
We could use the equation :
Least million = gross pay × (Number of bi-weeks × number of years)
1000000 = 1630 × (26n)
1000000 = 42380
Divide both sides by 34230
1000000 / 42380 = n
n = 23.59
The least number of years is 24.
Learn more : brainly.com/question/18796573
Answer:
daw
Step-by-step explanation: