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3 years ago

A lamb is on sale, and it's price is reduced from $80 to $50, what is the percent decrease?

Mathematics

1 answer:

Readme [11.4K]3 years ago

8 0

Answer:

.375% decrease also in fraction form 3/8

Step-by-step explanation:

so if 80 is 100 percent 3/8 of it was decreased meaning that .375% of the lamb was decreased

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HELP ME Twelve out of the first 100 people who entered the mall were wearing glasses. If this sample is representative of 550 pe

qaws [65]

So, we write a fraction, which would be 12/100. Then we would do 12/100 = x/550. You could divide 100 by 550, which is 5.5. Then we would multiply 5.5 by 12, which is 66. So 66 people would be wearing glasses.

3 0

3 years ago

Determine whether these functions are invertible. Find inverses of the invertible functions.

Flauer [41]

B) is not invertible, while the others are.
a) The inverse is x+2
c) The inverse is $\sqrt{x}$
d) The inverse is $\sqrt[3]{x}$

6 0

3 years ago

Pls help me as fast as possible

Maslowich

Answer:

.56

Step-by-step explanation:

Use a calculator.

8 0

3 years ago

Read 2 more answers

Worth 50 points if you help<br> Plz it’s due in 3 hours it’s math and show ur work plz

vodomira [7]

Answer:

1 We set z=-4

(2*-4 + b)(-4 - 3) = 0

(-8 + b)(-7) = 0

Set the factor (-8 + b) equal to 0.

-8 + b = 0

Solving for b, we get 8

b = 8

2We simplify the equation to the form, which is simple to understand

6x-12=51-3x

We move all terms containing x to the left and all other terms to the right.

+6x+3x=+51+12

We simplify left and right side of the equation.

+9x=+63

We divide both sides of the equation by 9 to get x.

x=7

3 Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + 6x = 35 + -8

Combine like terms: 8 + -8 = 0

0 + 6x = 35 + -8

6x = 35 + -8

Combine like terms: 35 + -8 = 27

6x = 27

Divide each side by '6'.

x = 4.5

Simplifying

x = 4.5

4 Combine like terms: 6x + x = 7x

14 + 7x = 70

Solving

14 + 7x = 70

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-14' to each side of the equation.

14 + -14 + 7x = 70 + -14

Combine like terms: 14 + -14 = 0

0 + 7x = 70 + -14

7x = 70 + -14

Combine like terms: 70 + -14 = 56

7x = 56

Divide each side by '7'.

x = 8

Simplifying

x = 8

5 15-4=11+3=14

19-14= x=5

6Combine like terms: -2 + 10 = 8

8 + 6x + 8x = 8

Combine like terms: 6x + 8x = 14x

8 + 14x = 8

Add '-8' to each side of the equation.

8 + -8 + 14x = 8 + -8

Combine like terms: 8 + -8 = 0

0 + 14x = 8 + -8

14x = 8 + -8

Combine like terms: 8 + -8 = 0

14x = 0

Solving

14x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '14'.

x = 0

Simplifying

x = 0

7idk sorry

8Solving

0.8 + 0.4x = 2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.8' to each side of the equation.

0.8 + -0.8 + 0.4x = 2 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0

0.0 + 0.4x = 2 + -0.8

0.4x = 2 + -0.8

Combine like terms: 2 + -0.8 = 1.2

0.4x = 1.2

Divide each side by '0.4'.

x = 3

Simplifying

x = 3

Step-by-step explanation:

i hope this is right good luck

5 0

3 years ago

Read 2 more answers

a charitable organization in Lanberry is hosting a black tie benefit. Yesterday, the organization sold 55 regular tickets and 49

jenyasd209 [6]

Answer:

regular: $67
VIP: $122

Step-by-step explanation:

Let r and v represent the costs of a regular and VIP ticket, respectively. The two sales can be represented by ...

55r +49v = 9663

79r +84v = 15541

We can subtract 7 times the second equation from 12 times the first to eliminate the v terms.

12(55r +49v) -7(79r +84v) = 12(9663) -7(15541)

660r +588v -553r -588v = 115,956 -108,787 . . . . . eliminate parentheses

107r = 7169 . . . . . . . simplify

r = 67 . . . . . . . . . . . divide by 107

Using this value in the first equation, we have ...

55(67) +49v = 9663

v = 5978/49 . . . . . . . . . subtract 3685, divide by 49

v = 122

A regular ticket costs $67; a VIP ticket costs $122.

_____

<em>Additional comment</em>

When using "elimination" to solve a system of equations, you're looking for coefficients of the same variable that are related by small factors. Preferably, one coefficient is the same as, or a small multiple of, the other. Here, 55 and 79 (the coefficients of x) are not related by an integer, or a couple of small integers. On the other hand, the y-coefficients 49 and 84 have a common factor of 7, and are in the ratio 7:12, a pair of small numbers. This is why we chose to eliminate the y-variable.

The x-variable could be eliminated using 55 and -79 as multipliers of the equations. This results in larger numbers, and more chance for error. (Errors tend to creep in when computing or copying large numbers.)

Of course, any of several machine methods could be used to solve these equations, including graphing and matrix-solving functions. Here, we tried to honor the requirement to solve by elimination.

7 0

3 years ago

A lamb is on sale, and it's price is reduced from $80 to $50, what is the percent decrease?​

A lamb is on sale, and it's price is reduced from $80 to $50, what is the percent decrease?