Find the sum of the sequence.
39 +40 +41 +42 + ... + 138
Answers
Answer:
Sol1 you can use "first(first+last)/2" is 138(138+1)/2 - 38(38+1)/2 = 8850
Sol2 or you can look this 39+40+41+....+100+(100+1)+(100+2)+....+(100+38) = 1+2+3+.....+99+100+100(38) = 5050+3800 =8850
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In a school, 2/3 of students study a language. Of those who study a language, 2/5 study French. Find the Ratio of student who study French to students who do not study French. Give your answer in the simplest form.Must be in Ratio __ : __
Simplify the expression (-5-4)divided(-3+5)
I really need help please the c/4 is a fraction 85+c/4=99
Answers
35miles per hour
70 miles per hour
105 miles per hour
315 miles per hour
Answers
i.e
Speed = (Change in distance) / (Change in time)
Since the graph is a straight line, we can consider any interval to calculate the speed as for a Linear graph the change remains the same.
From the graph we can see that at 1 hr the distance covered is 105 miles and at 2 hr the distance covered is 175 miles.
Change in Distance = 175 – 105 = 70 miles
Change in time = 2 – 1 = 1 hour
So, the speed is = 70 mile/1 hour = 70 miles per hour.
So option B gives the correct answer
Answer:
It. B. I. JUST. DID. THE. TEST
Step-by-step explanation:
5W - 23 < - 3 (3 - 4W)
Answers
Simplify both sides of the inequality.
5w−23<12w−9
Subtract 12w from both sides.
5w−23−12w<12w−9−12w
−7w−23<−9
Add 23 to both sides.
−7w−23+23<−9+23
−7w<14
Divide both sides by -7.
−7w/−7 < 14/−7
w > −2
Answers
So for it to be even, you need 33.33 yards
But there is only 3 yards so that means 100 feet is greater
Even if you did a mistypo and meant 10 feet, it would still be greater than 3 yards
f a punch he making?
Answers
2g = p and g = 8 (because there are 8 pints per gallon)
2(8) = p
16 = p
Mother is making 16 pints of fruit punch.
Remember this, 1 gallon is 8 pints
Answers
The number of rows kept empty will be 4 in the meeting room.
What is Arithmetic progression?
The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).
The arithmetic progression has wider use in mathematics for example sum of natural numbers.
As per the given,
Number of seats in one row = 9
Total number of seats = 126
Maximum number of possible rows =126/9 = 14 rows
Total number of people seated = 90
Number of rows filled = 90/9 = 10 rows
Empty rows = 14 - 10 = 4 rows.
Hence "In the meeting room, four rows will be left unoccupied".
For more about Arithmetic progression
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126 seats is the total.
9 seats for each row.
90/9 = 10
10 rows are already occupied.
126/9 = 14
there are 14 rows altogether.
Since 10 are occupied, and there are 14, we subtract.
14-10 = 4
Answer: There are 4 rows empty