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Goryan [66]
3 years ago
13

What is the value of 7(3x -4) + 15 when x = 6

Mathematics
1 answer:
Kaylis [27]3 years ago
6 0

Expand

21x - 28 + 15

Collect like terms

21x + (-28 + 15)

Simplify

<u>21x - 13</u>

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Answer:

288 is your answer. Your welcome

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3 years ago
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Solve - 1.2x + 2.5 = 0.8x + 6.5
lesantik [10]

Answer: x is -2

Steps:

- 1.2x + 2.5 =  0.8x + 6.5

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2 years ago
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Joe bought g gallons of gasoline for $2.65 per gallon and c cans of oil for $3.45 per can. a. What expression can be used to det
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Step-by-step explanation:

PART A

a=total amount

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8 0
3 years ago
Heights of men on a basketball team have a bell shaped distribution with a mean of 173 cm and a standard deviation of 8 cm using
ASHA 777 [7]
I have a similar problem here with a slightly different given. 

Heights of men on a baseball team have a bell shaped distrubtion with a mean of 172cm and a standard deviation of 7cm. Using that is the empirical rule, what is the approximate percentage of the men between the following values? 
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<span>b) 151cm and 193cm
</span>
The solution is:

 <span>a. (165-172)/7 = -1, (179-172)/7 = 1, % by empirical rule = 68% 

b. (151-172)/7 = -3, (193-172)/7 = 3, % by empirical rule = 99.7%
</span>
I hope that by examining the solution for this problem, it could help you  answer your problem on your own.
3 0
4 years ago
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Jason served his friends orange juice from a 60 oz carton. The carton shows there are 36 oz of orange juice left. Enter the perc
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Answer:

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4 0
3 years ago
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