Sheri wants to know how the 1,090 students at her school feel about after-school programs She selects each of these samples randomly. Is each a representative sample of the population

Answers

Answer 1

Answer: Yes, because they are random. There might have been something crucial you left out that would change that considering the wording, but with the info you have given, the answer is yes.

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an article was sold for $560 inclusive of a 20% discount. what was the price before the discount was given?

Answers

Answer:

672

Step-by-step explanation:

(1. Turn the percent into a decimal) 20% = 0.20 (2. Multiply 560 x 0.20 = 112) (3. Add 560 + 112)

3/4 (6x + 1) - 3x = 1/4 (2x - 1)

Answers

3/4 (6x + 1) - 3x = 1/4 (2x - 1) . The purpose of this question is to solve for x.

$\mathbf{x = (-4)/(13)}$

Given that:

3/4 (6x + 1) - 3x = 1/4 (2x - 1)

When calculating algebraic expression, we take note of integers in bracket first, then we collect the like terms in order to find the value of x.

$\mathbf{(3)/(4) (6x + 1) - 3x =(1)/(4) (2x - 1) }$

Let's multiply both sides by 4 to eliminate the fraction.

$\mathbf{((3)/(4) * 4) (6x + 1) - 3x =((1)/(4) * 4 ) (2x - 1) }$

$\mathbf{(3) (6x + 1) - 3x =(1 ) (2x - 1) }$

Open brackets;

18x + 3 - 3x = 2x - 1

By rearrangement;

18x - 3x + 3 = 2x - 1

15x + 3 = 2x - 1

Collect like terms

15x - 2x = - 3 - 1

13x = - 4

Divide both sides by 13

$\mathbf{(13x)/(13) = (-4)/(13)}$

$\mathbf{x = (-4)/(13)}$

Learn more about algebraic expressions here:

brainly.com/question/11227332?referrer=searchResults

3/4*(6x+1)-3*x-(1/4*(2*x-1))=0
X=1

What is the radius of the circle whose equation is x^2 + y^2 = 8

Answers

√8

for the equations of circles: x²+y²= (radius)²

A store offers packing and mailing services to customers. This table is given to customers to help them estimate the cost of shipping a box based on its weight in pounds, and a flat rate of $5 for packing. Which equation represents the shipping cost as a function of x, the weight in pounds? a. f(x) = 2.25x + 5. b. f(x) = 3.5x + 4. c. f(x) = 4x + 9. d. f(x) = 9x + 14

Answers

Answer:

f(x) = 2.25x + 5

Step-by-step explanation:

As given, the cost of shipping a box is based on its weight in pounds, and a flat rate of $5 for packing. This means $5 is common for each parcel that will be sent. Only the weight will vary.

So, option first f(x)=2.25x+5 is the correct answer. Here 2.25 is the per pound rate. Like if someone wants to send a parcel weighing 3 pounds, the price will be :

f(x)=2.25*3 +5

= $11.75

The function that shows the shi[ping cost as a function of x is f(x) = 2.25x + 5.

How is the function related to the shipping cost?

The function tells us that there is a constant 5. This constant is the flat rate of 5 dollars which is the rate for packing.

X is a variable whose values can change based on the weight of the package that is to be sent.