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SIZIF [17.4K]
3 years ago
15

Find the value of n in 7 times 38 plus 3 times 45 minus 56

Mathematics
1 answer:
Alex787 [66]3 years ago
3 0
7 * 38 + 3*45 - 56 
use order of operations 
(7*38) + (3*45) - 56

266 + 135 - 56

=345
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URGENT WILL MARK BRAINLIEST<br> Question is in attachment
kherson [118]
8x-41+9x+17= 180 (becuase they lie on a straight line)

17x-24=180

Move twenty four to the other side as a positive

17x=204

Divide both sides by 17

X is equal to 12

7 0
3 years ago
You’ve observed the following returns on Crash-n-Burn Computer’s stock over the past five years: 14 percent, –9 percent, 16 perc
MatroZZZ [7]

Answer:

a. 9%

b. 0.01445

c. 12.02%

Step-by-step explanation:

n = 5 years

Return rates = 14%, –9%, 16%, 21%, and 3%

a. Arithmetic average return

A= \frac{14-9+16+21+3}{5} \\A=9.00

b. Historical variance (to 5 decimal places)

V= \frac{\sum (X_i-A)^2}{n-1} \\V= \frac{(0.14-0.09)^2+(-0.09-0.09)^2+(0.16-0.09)^2(0.21-0.09)^2(0.03-0.09)^2}{5-1}\\ V=0.01445

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8 0
3 years ago
PLEASE HELP- Tito solved this equation (Click picture) Which of the following properties did he use? Check all that apply.
gayaneshka [121]
Where's the picture??????????????
6 0
3 years ago
What is the coefficient of the term 12p+9q
olga nikolaevna [1]

Answer:

The answer is 12.  

Step-by-step explanation:

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I hope this helps u! :D

4 0
3 years ago
Help me please and thank you !
serg [7]
The answer is C. Why? Well, see below!

A would be incorrect because the problem is asking what the area of the stamp would be. In order to find area, we multiply length and width by each other. The given equation we initially had shows division, and would therefore be incorrect. B would be incorrect because although the equation has the correct evaluation symbol, the formula for identifying length would be L = A / W, which means length equals area divided by width. Because the area is 1/4 in this problem, the expression used for evaluation would be 1/4 divided by 1/5. D is incorrect because, like B, the evaluation expression would be 1/4 divided by 1/5.

Your final answer: Because C is the only problem that gives us a corresponding expression to the initial expression, C is the correct answer. If you need extra help, let me know and I will gladly assist you.
7 0
2 years ago
Read 2 more answers
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