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VladimirAG [237]
4 years ago
9

gerald has 30 dollars to spend on lunch this month. lunch cost him 1.50 each day. after 8 days how much money has he spent?

Mathematics
1 answer:
pentagon [3]4 years ago
3 0

Answer:

18 dollars

Step-by-step explanation:

$1.50*8=$12

$30-$12=$18

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When a mathematician writes QED at the end of a proof, what does this
blondinia [14]

(C)

Step-by-step explanation:

Q.E.D means "quod erat demonstrandum" indicating that the proof is completed.

6 0
3 years ago
What is the first term in a geometric sequence if the common ratio is −4 and the sum of the first four terms is −255?
posledela
Sn=A1(1-r^n)/(1-r)
Sum of a finite geometric series formula
We know the sum, number of terms and rate, so you plug those in.
-255=A1(1-(-4)^4))/(1-(-4)
-255=A1(1-256)/5
-255=A1(-255)/5
-1275=A1(-255)
5=A1

Hope this helped! Let me know if you have any questions.
8 0
3 years ago
Help me!!! solve the inequality!! 8 ≤ x < 6
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4 0
3 years ago
On the first day it was posted online, a music video got 510 views. The number of views that the video got each day increased by
8090 [49]

Answer:

19,552 views on day 20, 114,763 views cumulative total for 20 days.

Step-by-step explanation:

The decimal equivalent to "increased by 20% per day" would be (510)*(1.20)/day, if we started with 510 views as day 0.  Day 1 would be (510)*(1.20) = 612 views.

If we have n successively days, the equation would read (510)(1.20)^n.

This means that after, lets say, 3 days, the calculation would be (510)*(1.20)^3, or 881 views.

On day 20, the calculation is (510)*(1.2)^20, or 19,552 views.

But the question asks "How many total views did the video get over the course of the first 20 days . . ?"  This seems to be asking the sum of the first 20 days, which is easy if you use a spreadsheet.  But if you read the question to mean what are the total views on day 20, the answer would be 19,552 views.

If you read the question as asking for the total sum of views over 30 days, the answer is 114,763.  Quick:  what does that amount to at $0.05 per view.

3 0
3 years ago
Pls answer if you only know the correct answer! Thanks! :)
Aleonysh [2.5K]

Answer:

I would say it's -0.8

Step-by-step explanation:

Since 3 is pretty far, I'm assuming -2 is at the left end of the line, so -.8 seems like the most reasonable answer.

4 0
3 years ago
Read 2 more answers
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