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astraxan [27]
3 years ago
7

Simplify the expression 3(9+4x-5)

Mathematics
1 answer:
Xelga [282]3 years ago
8 0

x=24

Step-by-step explanation:

3(9+4x-5)

divide x by 4x to move the x to the other side.

x=3(9+4-5)

9+4=13

x= 3(13-5)

13-5=8

x= 3(8)

x=24

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Adult tickets to a play cost $22.00 Tickets for children cost $15.00. Tickets for a group of 11 people cost a total of $228.00.
Anastaziya [24]

Answer:

The answer to your question is 9 adults and 2 children

Step-by-step explanation:

Data

adult ticket = $22

children ticket = $15

Total people= 11

total cost = $228

Number of adults = x = ?

Number of children = y = ?

Process

1.- Write equation to solve the problem

              x + y = 11                           Equation l

           22x + 15y = 228                  Equation ll

-Solve Equation l by x

              x = 11 - y                            Equation lll

-Substitute equation lll in equation ll

          22(11 - y) + 15y = 228

-Solve for y

         242 - 22y + 15y = 228

-Simplify like terms

                -7y = 228 - 242

                -7y = -14

                   y = -14/-7

                  y = 2

-Find x

              x = 11 - 2

              x = 9

2.- Conclusion

There were 9 adults and 2 children.                

6 0
2 years ago
This is a lot of work into this!
masha68 [24]

The maximum revenue of the craftsman is an illustration of objective function

The craftsman can at most make $500, if he makes 100 bracelets

<h3>How to determine the maximum revenue?</h3>

Represent bracelet with b and necklace with n.

From the question, we have:

                 b              n        Total

Unit           10          20        1000

Time         10           40        1600

Cost         5           7.5

So, we have the objective function to be:

Max C = 5b + 7.5n

And the constraints are:

10b + 20n ≤ 1000

10b + 40n ≤ 1600

b ≥ 0

n ≥ 0

From the given graph of the constraints, we have the following feasible points

(b,n) = (0,0) (40,30) (0,50) and (100,0)

Substitute these values in the objective function

C(0,0) = 5(0) + 7.5(0) = 0

C(40,30) = 5(40) + 7.5(30) = 425

C(0,50) = 5(0) + 7.5(50) = 375

C(100,0) = 5(100) + 7.5(0) = 500

The maximum revenue is at the point (100,0)

Hence, the craftsman can at most make $500, if he makes 100 bracelets

Read more about objective functions at:

brainly.com/question/16826001

7 0
2 years ago
Write an equation in slope-intercept form of the line that passes through the point (-2,1) and is perpendicular to the equation
blondinia [14]
Let's convert the equation into slope-intercept form.

3x + 18y = 4
Subtract 3x from both sides.
18y= -3x + 4
Divide both sides by 18.
y = -3/18x + 4/18
Simplify.
y = -1/6x + 2/9

To make a line perpendicular, we need the slope to be the reciprocal of the other. Flip the denominator and numerator, and change the sign. We also have to change the b to make the line go through (-2, 1)

-1/6 to +6/1, or 6.

y = 6x + b

Input the x and y values and solve for b.

1 = 6(-2) + b
1 = -12 + b
Add 12 to both sides.
13 = b

y = 6x + 13
5 0
3 years ago
A TV that usually sells for $169.84 is on sale for 30% off. If sales tax on the TV is 7%, what is the price of the TV, including
RUDIKE [14]

Answer: 127.21 i think

3 0
2 years ago
25-[90-5{9-(14-12)}]/5​
kirza4 [7]
I’m guessing the...
Answer : 14
5 0
3 years ago
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