Answer:
there is only one easy way to sole this
using quadratic equation
Step-by-step explanation:
a=6 b=5 c=-6
and by applying it to the equation you will get
x=0.66 and x=-1.5
Answer:
About 121 words per minute or WPM.
Step-by-step explanation:
A reader can read 850 WPM. If an average reader can read 1/7 of that, you divide 850 by 7 to get your answer.
850/7 = 121.42....
Then you can round to the nearest tenth to 121.
Answer:
x=16/3
Step-by-step explanation:
left part : -1+3x-8
right part: 7
left part = right part
-1+3x-8=7
left part +8= right part +8
-1 + 3x -8 +8=7+8
-1+3x=15
left part : -1+3x
right part : 15
left part+1=right part+1
-1+3x+1=15+1
3x=16
so
x=16/3
Answer:
Step-by-step explanation:
To add two matrices you just need to add the corresponding entries together. In this case, we have that:
Solving for D:
Then, the solution is the fourth option.
Answer:
A. 8 gallons
B. Drive by car is $59.4 cheaper than travel by train
Step-by-step explanation:
According to the scenario, given data are as follows,
Total drive = 400 miles
Total drive per gallon = 50 miles
Fuel cost per gallon = $4.45
A. So, Total fuel required to drive 400 miles can be calculated as follows,
Total fuel required = Total drive ÷ Total drive per gallon
By putting value, we get,
Total fuel required = 400 ÷ 50
= 8 gallons
B. Total cost if drive by car = 8 gallons × $4.45 = $35.6
Cost if travel by train = $95
Hence it is clearly shows that drive by car is much cheaper than travel by train.
Cost saved by travel by car = $95 - $35.6 = $59.4
So, drive by car is $59.4 cheaper than travel by train.