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3 years ago

Measured value: 23.5 cm actual value: 25 cm. What is the percent error???

Mathematics

1 answer:

goldenfox [79]3 years ago

4 0

Percent error is (what u got - the actual answer/the actual answer * 100)

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A movie theater has a seating capacity of 197. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults.

yarga [219]

Answer: 74 children attended

86 students attended

37 adults attended

Step-by-step explanation:

Let x represent the number of children that attended.

Let y represent the number of students that attended.

Let z represent the number of adults that attended.

The movie theater has a seating capacity of 197. It means that

x + y + z = 197- - - - - - - - - - - - -1

The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults. If the total ticket sales was $ 1416, It means that

5x + 7y + 12z = 1416- - - - - - - - - - 2

There are half as many adults as there are children. It means that

It means that

z = x/2

x = 2z

Substituting x = 2z into equation 1 and equation 2, it becomes

2z + y + z = 197

y + 3z = 197- - - - - - - - - - - - -3

5 × 2z + 7y + 12z = 1416

10z + 7y + 12z = 1416

7y + 22z = 1416- - - - - - - - - - - 4

Multiplying equation 3 by 7 and equation 4 by 1, it becomes

7y + 21z = 1379

7y + 22z = 1416

Subtracting, it becomes

- z = - 37

z = 37

x = 2z = 2 × 37

x = 74

Substituting x = 74 and z = 37 into equation 1, it becomes

74 + y + 37 = 197

y = 197 - 74 - 37

y = 86

5 0

3 years ago

19 PTS!!!! PLZ HELP ASAP

Ira Lisetskai [31]

The number of muffin can yield is 18.

Step-by-step explanation:

Given:

The recipe needs $\frac{3}{4}$ cup chopped apple.

To find:

Umber of muffins when 1 $\frac{1}{8}$ cup chopped apple is given.

Solution:

1 $\frac{1}{8}$ ÷ $\frac{3}{4}$ = 1.5

1 $\frac{1}{8}$ cup apple is 1.5 times of $\frac{3}{4}$ cup of apple

So, the number of muffins will be = 12 × 1.5

= 18

Thus 18 muffins can be yielded from a batch that contains 1 1/8 cups of chopped apple

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3 years ago

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AlladinOne [14]

Answer:

Step-by-step explanation:

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3 years ago

Solve for x? Please

sasho [114]

Check the picture below.

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3 years ago

Please Help, I don't understand how to solve this!! Will mark BRAINLIEST!!!

egoroff_w [7]

Answer:

5/4

Step-by-step explanation:

First plot any2 points. Next count how many units it is High and Left/Right to get to the second point!

(Added your graph for further explaination :)

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3 years ago

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