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lianna [129]
3 years ago
7

What is the sum of the interior angles of a enneagon (19-sides)

Mathematics
1 answer:
Ivan3 years ago
4 0

Answer:

3060°

Step-by-step explanation:

19-2 = 17

17 x 180 = 3060

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Larry's Lemons is a street vendor business that sells lemonade and lemon bars. A cup of lemonade sells for $2 and a lemon bar se
maxonik [38]

We can let x and y represent cups of lemonade and numbers of lemon bars, respectively. Then the constraints are ...

  • x ≥ 150
  • y ≥ 0
  • 2x +1.5y ≥ 500
  • 0.25x +0.20y ≤ 100

A graph is shown in the attachment, with the ordered pairs plotted. It is not feasible to sell half cups of lemonade or half lemon bars, so the second and third choices must be excluded. The point (160, 110) falls outside the feasible region, so is not a correct choice.

The correct choices are ...

  • (150, 200)
  • (180, 100)

8 0
3 years ago
here are the ingredients for making fish pie for 5 people. 180g flour,240g fish,80g butter,4 eggs, 180ml milk . Lan makes a fis
kvasek [131]
5p = 80b
3(5p) = (80b)3
15p = 240b

Lan need 240g of butter to make fish pie for 15 people.
8 0
3 years ago
Read 2 more answers
Given the following expression. 2 1/4 - (-3 2/5) A. Rewrite the expression using addition. B. Evaluate the expression.
prisoha [69]

Answer:

A. 2 1/4 + 3 2/5

B. 113/20

Step-by-step explanation: For A: All you had to do was multiply -1(-3 2/5) and that was going to make your answer positive because the negatives were going to cancel each other out.

For B: First you had to make your fractions improper fractions instead of mixed numbers. And that would make it 9/4 + 17/5. Next, since they don't have the same denominator, you would have had to find the least common multiple of 5 and 4 which is 20. So then how ever many times your denominator went in to 20, that's what you'll multiply your numerator by. 45/20 + 68/20= 113/20

8 0
3 years ago
Write an equality that represents eight less that three times a number is more than 22​
leonid [27]

Answer:

3x - 8 > 22

Step-by-step explanation:

" eight less" means to subract 8 form something.  If you had 10 apples and I took some so now you had 8 less apples, you'd have 10 - 8 = 2 apples

"three times a number" means 3x.  3 times some number.

The expression 3x - 8 means "8 less than 3 times a number"

"is" is math is a statement of equality, either an equals sign or an inequality needs to go here.

Our inequality is

3x - 8 > 22        

3 0
3 years ago
12. Algebra There are 92 students in the third and fourth grades at Johnsonville Elementary. Of these, 47 are in fourth grade. W
Fudgin [204]

x + 47 = 92.   <--- x represents the number of 3rd graders

x +47-47 = 92-47

x=45

There are 45 third grader. Hope this helped!

4 0
3 years ago
Read 2 more answers
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