Answer: 6n + 2 = 8
Step-by-step explanation:
2 more means add but due to order of operations, you do multiplication first. a number is represented by n. 6n means 6 x n. Then add 2 to get 8. You can sub in 1 for n and it will be solved.
< BOC and < BOF are supplementary and add up to 180
From unit conversion, it is found the following results:
6km ≈ 3.73 mi
2.5 L≈ 0.66 gal
90 lb ≈ 40.82 kg
<h3>
Unit Conversion</h3>
Units of measurement are part of our daily lives. There are different units for area, length, volume, mass, and others. Because of this, it is important to know converting them.
For solving this question you need some information as:
1 km = 0.621371 mi ( unit for length and distance)
1 L = 0.2641722 gallons (unit for volume)
1 lb = 0.453592 kg (unit for mass)
Therefore,
- If 1 km = 0.621371 mi, you will have:
1 km -------- 0.621371 mi
6 km -------- x mi
x= 6* 0.621371
x=3.73 mi
Thus, 6km ≈ 3.73 mi.
- If 1 L = 0.2641722 gallons, you will have:
- 1 L-------- 0.2647122 gal
- 2.5L -------- x gal
- x= 2.5* 0.2647122
- x=0.66 gal
- Thus,
- 2.5 L≈ 0.66 gal.
- If 1 lb = 0.453592 kg, you will have:
- 1 lb-------- 0.453592 kg
- 90 lb -------- x kg
- x= 90* 0.453592
- x=40.82 kg
- Thus,
- 90 lb≈ 40.82 kg
- .
Read more about unit conversion here:
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Answer:
(1,-1), (5,-4), (2,-6)
Step-by-step explanation:
Took the test, this was the given answer.
Answer:
a+c =11
a +3c = 19
a =7 and c = 4
Step-by-step explanation:
Let a = price of one adult
c = price of one child
We know one adult and one child = 11
a+c =11
Mrs smith and 3 children spent 19
a +3c = 19
We have 2 equations and 2 unknowns
a+c =11
a +3c = 19
Multiply the first equation by -1 so we can eliminate a
-a-c=-11
a+3c=19
----------------
2c = 8
Divide by 2
2c/2 = 8/2
c=4
Each child equals 4 dollars
Now we need to find a
a + c= 11
a+4 = 11
Subtract 4 from each side
a+4-4 = 11-4
a = 7
The adult is 7