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Sedbober [7]
2 years ago
12

The sum of the first 21 terms of the progression, - 18, - 15,-12.....is?​

Mathematics
1 answer:
katovenus [111]2 years ago
8 0
You can just use the tn formula to solve this tn= t1 + (n-1)d
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Hurrryyyyy upppppp plzzzz helpppp meeeeee rightttt nowwwwwwww
bonufazy [111]

Answer:

It’s the third one

Step-by-step explanation:

-1.1x+6.4>-1.3

-1.1x>-1.3-6.4

-1.1x>-7.7 multiplied by -1 gives 1.1x<7.7

Divided by 1.1 you get x<7

7 0
3 years ago
A student bought 5 coats at $86 each and paid for them with only $20 bills. How many bills did it take ?
aleksandr82 [10.1K]
It took 22 $20 bills . $86 x5= $430
Then $430 divide by 20 = 21.5
So you can’t have half a bill do the answer has to be rounded up to 22 twenty dollar bills
3 0
3 years ago
It's summer time, and that means Debbie will be swimming in those awesome hotel pools! The suit she has her eye on was purchased
natima [27]

6.4$

Solution:

Divide 40 and 100(there must always be 100 when solving percentage) then it would be equal to 0.4

after it Multiply it to 16

so we get 6.4.

7 0
2 years ago
Read 2 more answers
PLS HELP ASAP<br> does anyone know these answers
katovenus [111]

Answer: i know it

Step-by-step explanation: i know

7 0
2 years ago
Annie has two equal sized amounts of wax in two different colors she used 5/8 of the green wax and 1/3 of the blue wax to make s
lana66690 [7]
Find a common denominator that 8 and 3 can go into.. which is 24
5/8 = 1/3 
15/24 - 8/24 
7/24

Hope this helped


6 0
3 years ago
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