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brilliants [131]
3 years ago
10

I dont understand how to do it!!!

Mathematics
1 answer:
kondaur [170]3 years ago
7 0

1) 3x+12=90 would be the equation.

That's the jist of it. hope it helps


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If you flip two coins 96 times what is the best prediction for the number of times they would both land on tails
emmainna [20.7K]
Flipping two coins gives four possibilities: HH, HT, TH, TT

So P(TT)=1/4

So we'd expect a quarter of the trials to be two tails.

\frac 1 4 \times 96 = 24 trials expected to be two tails.


5 0
3 years ago
You have a $7,000 credit card debt, and you plan to pay it off through monthly payments of $175. If you are being charged 15% in
cricket20 [7]
6 years?
You haven't given any options..but this is how i got it.
7000/175= 40
40*0.15=6
3 0
3 years ago
Every minute,
Novay_Z [31]

Answer:


Step-by-step explanation: If you are trying to figure out how many gallons the whole family uses, the answer is 99 gallons.The reason is is because it says 2.2 gallons a minute and it takes 9 minutes for a shower. So you multiply 9 by 2.2 which would give you 19.8. Then you multiply it by 5 isnce it says 5 people take a shower.


4 0
4 years ago
Read 2 more answers
Identify the value for the variable. What is the value of x in this simplified expression? 7-9 · 7-3 = 7x
Varvara68 [4.7K]
Solve for x:
-59 = 7 x

-59 = 7 x is equivalent to 7 x = -59:
7 x = -59

Divide both sides of 7 x = -59 by 7:
(7 x)/7 = (-59)/7
7/7 = 1:
Answer:  x = (-59)/7
4 0
4 years ago
Read 2 more answers
What is the measure of an interior angle in a regular polygon with 67 sides?
joja [24]
EACH Interior angle = 180 - (360 / number of sides)
EACH Interior angle = 180 - (360 /67)
EACH Interior angle = <span> <span> <span> 174.6268656716 </span> </span> </span>

Source:
http://www.1728.org/polygon.htm


6 0
4 years ago
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