Answer:
olk 69 -_-
Step-by-step explanation:
You just need to substitute 4(2)-2(5)/2
8-10/2
8-5
=3
Question 1:
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Total points = 100
Total question = 40
Type of questions : 2-points question and 4-points questions
Assumed all 40 questions are 2-points questions.
Total points = 40 x 2 = 80
Difference in points = 100 - 80 = 20 points
Difference in the 2 type of questions = 4 - 2 = 2
Number of 4 marks questions = 20 ÷ 2 = 10
Number of 2 marks questions = 40 - 10 = 30
Answer: There are 10 4-marks questions and 30 2-marks questions.
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Question 2:
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Let x be the number of offices you need to clean.
Total cost = 315 + 4x
Total revenue = 25x
To break even,
315 + 4x = 25x
21x = 315
x = 15
Answer: You need to clean 15 offices to break even.
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Question 3:
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Total distance (including return trip) = 255 + 255 = 510 miles
Total time taken = 1.7 + 1.5 = 3.2 hours
Speed = Distance ÷ time
Speed = 510 ÷ 3.2 = 159.38 miles/hour
Answer: The average speed is 159.38 miles/hour
Jabes travels 425.75km per day.
Unit rate is the amount of a certain item related to a single unit of another item.
In the question, we are given that Jabes traveled 3406km in 8 days
We have to find the distances that Jabes travel per day which will be the unit rate of distance per day.
The total distance that jabes traveled in 8 days = 3406 km
Thus, the distance per day jabes traveled can be calculated as:
8 days ⇒3406 km
or, 1 day⇒ 3406/8days = 425.75km
Thus,jabes traveled 425.75 km per day, using the unit rate.
Learn more about the unit rate here:
brainly.com/question/4895463
#SPJ4
Answer:
T F → F
Step-by-step explanation:
2+2 does equal 4 so its true.
but 7+1 does <em>not</em><em> </em>equal 7, it equals 8. So its fasle.
im not sure i did this this right so if i did it wrong im sorry love (-ω-；)
