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Rashid [163]
4 years ago
13

Solve the linear expression 5(-3.4k-7)+(3k+21)

Mathematics
1 answer:
Marysya12 [62]4 years ago
4 0
I am just a middle-schooler, but like to answer, so I believe k is -1.
You might be interested in
Need help pleasee and thanks
Evgesh-ka [11]

Answer:

105

Step-by-step explanation:

7*15=105 length times width

6 0
3 years ago
best defines the two quantities that are measured to find the call rate of a phone company ? A quantity of price measured in dol
MArishka [77]
I would say that the correct answer that best defines the two quantities that are measured to find the call rate of a phone company is A. the quantity of price measured in dollars depends on the quantity of time measured in minutes. 
5 0
3 years ago
Read 2 more answers
At the movie theatre, child admission is $5.90
Alik [6]
Let the number of children be c, and the number of adults be a.
c + a = 170 (total number of tickets)
Then the cost of each is: $5.90/child, $9.60/adult:
5.9c + 9.6a = 1269.40 (total sales)
Solving as 2 simultaneous equations, we first transform the first equation:
a = 170 - c
Substitute into the 2nd equation:
5.9c + 9.6(170 - c) = 1269.40
Solving gives c = 98, and a = 170 - 98 = 72. This means that 72 adult tickets were sold that day.
5 0
4 years ago
Im really struggling with this!
Tasya [4]
The answer is 6.5 because of the angle that is used
3 0
3 years ago
What is the solution to the equation x/3+x/6=7/2
nadezda [96]

Answer:

x = 7

Step-by-step explanation:

the smallest common denominator between 2 3 and 6 is 6. Multiply the original equation by 6

  • 6(x/3 + x/6 = 7/2)
  • 6(x / 3) = 2x
  • 6(x/6) = x
  • 6(7/2) = 3*7 = 21

Result

  • 2x + x = 21
  • 3x = 21
  • 3x/3 = 21/3
  • x = 7

Check

  • 7/3 + 7/6 = 7/2
  • 14/6 + 7/6 = ? 7/2
  • 21/6 =? 7/2
  • 21/6 = 3.5
  • 7/2 = 3.5

Answer: x = 7

3 0
3 years ago
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