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Vitek1552 [10]
2 years ago
13

The difference between a number and three is multiplied by negative six. The result is eighteen. What is the number? Write an eq

uation that can be used to find the number, n . Solve the equation you wrote in part A to find the value of the number. Include all of your work in your answer.

Mathematics
1 answer:
trapecia [35]2 years ago
8 0

Answer:

that is the solution to the question

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Pablo's Gourmet Pretzel Shop specializes in selling the very finest chocolate covered pretzels. Rico bought 4 white chocolate pr
Evgen [1.6K]

Answer:

Step-by-step explanation:

Let x represent the cost of one white chocolate pretzel.

Let y represent the cost of one dark chocolate pretzel.

Rico bought 4 white chocolate pretzels and 6 dark chocolate pretzels for $10.50. This means that

4x + 6y = 10.5 - - - - - - - - - - -1

Holden bought 8 white chocolate and 3 dark chocolate pretzels for $9.75. This means that

8x + 3y = 9.75 - - - - - - - - - 2

Multiplying equation 1 by 8 and equation 2 by 4, it becomes

32x + 48y = 84

32x + 12y = 39

Subtracting, it becomes

36y = 45

y = 45/36 = $1.25

Substituting y = 1.25 into equation 1, it becomes

4x + 6 × 1.25 = 10.5

4x + 7.5 = 10.5

4x = 10.5 - 7.5 = 3

x = 3/4 = $0.75

the total cost for 6 white chocolate pretzels and one dark chocolate pretzel would be

6 × 0.75 + 1 × 1.25 = 4.5 + 1.25 = $5.75

7 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THESE PEOPLE​
vazorg [7]

Inverse of f(x)=x+2 is f^{-1}(x)=x-2 because

f(x)=x+2\Rightarrow x=f^{-1}(x)+2\Rightarrow\boxed{f^{-1}(x)=x-2}

Now f^{-1}(-5)=-5-2=\boxed{-7}.

Hope this helps.

4 0
2 years ago
X+9/7=10 solve for x
Illusion [34]
X + 9/7 = 10 
   -  9/7   -9/7
___________
          x = 8  2/7
5 0
2 years ago
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E Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select three options.
kozerog [31]

Answer:

6feet by 5feet by 4feet

7feet by 6feet by 4feet

8feet by 3feet by 7feet

7 0
2 years ago
On a​ map, 1 inch equals 25 miles. Two cities are 9 inches apart on the map. What is the actual distance between the​ cities?
Nataly [62]

Answer:

225 miles

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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