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Gala2k [10]
3 years ago
8

72 is equal to 80% of a number n. Write and solve and equation to find n. Write the percent as a decimal.

Mathematics
1 answer:
Deffense [45]3 years ago
4 0
I'm pretty sure the answer is 90 = n decimal 0.8
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What is the interquartile range of 77 88 92 81 86 84 86 83 and how do you get it thx plz help
puteri [66]
To find the IQR you first need to write it in numerical order

77, 81, 83, 84, 86, 86, 88, 92


IQR is just Q3 - Q1

Q1 is the middle of the first have, since it has an even set of 4 numbers in the first half you need to take the average of the two middle ones.. which is 82

Q3 done the same process would be 87. 

87 - 82 = 5

IQR = 5
6 0
3 years ago
Let g(x) be the reflection of f(x) in the x-axis. What is the function rule for g(x)? Let g(x) be the reflection of f(x) = 3x +
goblinko [34]
Reflection rule in the x-axis:
g(x) = - f(x)

f(x) = 3x+12
g(x) = - f(x) = -3x-12

The correct choice is option (C)
8 0
2 years ago
Please someone help I am so lost.
HACTEHA [7]
You'll have to do the actual multiplication here:

  3(n+2)(4n+1)         1        4n^2 + n + 8n + 2
 -------------------- = -----  *  ---------------------------
            6                   2                    1

or (1/2) (4n^2 + 9n + 2), which, after mult., becomes

(1/2)(4n^2) + (1/2)(9n) + 1


This simplifies to 2n^2 + (9/2)n + 1

Therefore, write (1/2) in the first box and (1) in the second box.
7 0
3 years ago
Solve y + -7 = 13 ?
ratelena [41]
Well first off if you have a negative sign in front of the seven, DO NOT have a plus sign because it will be confusing. So y-7=13? , You add 7 to 13 and = 20, so y= 20
3 0
3 years ago
Natasha places an online order for plate holders to display her antique plates. She chooses a specific site because it has a pro
lawyer [7]
She received 15% off, so she actually paid 85%

0.85(( 3*4.95) + (2* 3.25) + (2*1.75) + 5.35)) = 0.85(30.20) = 25.67
um...I have double checked this, and I am not getting an answer choice.
3 0
2 years ago
Read 2 more answers
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