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pickupchik [31]
3 years ago
10

PLSS HELP IF YOU TURLY KNOW THISS:)

Mathematics
2 answers:
vampirchik [111]3 years ago
7 0

Answer:99

Because when simplified its 9

ra1l [238]3 years ago
5 0

Answer:99

Step-by-step explanation: x/11=9. So we’ll multiply 9 by 11 to cancel it out. 9x11= 99 .

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The sum of the first 3 terms of a geometric series is 171 and the common ratio is 2/3
Nimfa-mama [501]
<h3>Answer:  81</h3>

==============================================

Work Shown:

a = first term

a*(2/3) = (2/3)a= second term

(2/3)a*(2/3) = (4/9)a = third term

note how I multiplied each previous term by the common ratio (2/3) to get the next term

Add up the three terms

a + (2/3)a + (4/9)a = (9/9)a + (6/9)a + (4/9)a = (19/9)a

Set this equal to 171, which is what we want the first three terms to sum to, then solve for 'a'

(19/9)a = 171

a = (9/19)*171

a = 81 is the first term

------------------------------------

Checking the answer:

a = 81 = first term

(2/3)*a = (2/3)*81 = 54 = second term

(4/9)*a = (4/9)*81 = 36 = third term

adding up the three terms gets us

81+54+36 = 171

so we have confirmed the answer

4 0
3 years ago
I really really need help on this question what is the answer for this ( how much would it cost to mail a letter that weighs 2.7
prohojiy [21]

It costs $.50 to mail a letter of that size.

All letters that are under 3.5 oz take only one stamp to ship. Since 2.7 is less, it would cost only $.50

5 0
4 years ago
Can someone help me with this question!<br><br> 13-3/2 x =37
kaheart [24]

Answer:

13-3/2x=37

taking LCM,

13×2x/1×2x - 3/2x=37

26x-3 /2x=37

cross multiply

2x × 37=26x-3

74x=26x-3

74x-26x=-3

48x=-3

x=-3/48

x=-1/16

hope it helps you!

8 0
3 years ago
What do you call it when someone pays back a loan quickly?
evablogger [386]
A sudden dept pay off
5 0
3 years ago
The height of a person and the person's age, is the relationship linear?
PolarNik [594]
Liniear means that they go up at a constant rate
example, every year you grow 2 inches and you started at 8 inches tall
that would be linear
but that is not the case
generally, the younger you are, the faster you grow
as you age, you don't grow as much anymore :(

so no, it is not linear
8 0
3 years ago
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