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3 years ago

1. It costs $5820 to get new windows for a certain house. Each of the 28 windows costs the same amount.

1 answer:

4 0

1.A to find the answer, round $5820 to $6000. Then round $28 to $30. Each curtain would cost an estimate of $200.
1.B 5820/28=<span>207.857142857

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Please help and ill give brainliest

slava [35]

3.2 goes in the first and second blank, 8.7 is the final answer

7 0

3 years ago

Read 2 more answers

Which expression is equivalent to 5/2

LenaWriter [7]

Answer:

2.5

Step-by-step explanation:

5/2=2.5

6 0

4 years ago

g You manage an ice cream factory that makes two flavors: Creamy Vanilla and Continental Mocha. Into each quart of Creamy Vanill

iragen [17]

Answer:

You should make 200 quarts of Creamy Vanilla and 50 quarts of Continental Mocha to earn the largest profit.

Step-by-step explanation:

You are going to earn the largest profit when you manage to use all the eggs and cups of cream that you have in stock.

This problem can be solved by a first order equation

I am going to call x the number of quarts of Creamy Vanilla and y the number of quarts of Continental Mocha.

The problem states that each quart of Creamy Vanilla uses 2 eggs and each quart of Continental Mocha uses 1 egg. There are 450 eggs in stock, so:

2x + y = 450.

The problem also states that each quart of Creamy Vanilla uses 3 cups of cream and that each quart of Continental Mocha uses 3 cups of cream. There are 750 cups of cream in stock, so:

3x + 3y = 750

Now we have to solve the following system of equations

1) 2x + y = 450

2) 3x + 3y = 750

The first thing i am going to do is simplify the equation 2) by 3

2) 3(x+y)/3 = 750/3

2) x+y = 250

So now, we have the following system

1) 2x + y = 450

2) x + y = 250

I am going to write y as a function of x in 2), and replace in 1)

y = 250 - x

Replacing in 1)

2x + 250 - x = 450

2x - x = 450 - 250

x = 200

You should make 200 quarts of Creamy Vanilla

From 2), we have

y = 250 - x = 250 - 200 = 50

You should make 50 quarts of Continental Mocha

4 0

4 years ago

When finding the margin of error for the mean of a normally distributed population from a sample, what is Alpha, assuming a conf

MArishka [77]

The value of alpha is 0.26, assuming a confidence level of 74%.

<h3>What is the margin of error?</h3>

The significance level α is the probability of making the wrong decision when the null hypothesis is true.

Alpha levels which is also called as significance levels are used in hypothesis tests.

Given

When finding the margin of error for the mean of a normally distributed population from a sample.

The confidence interval = 74% = 0.74.

The value of the alpha is given by;

$\rm \alpha =1- Confidence \ interval$

Substitute all the values in the formula

$\rm \alpha =1- Confidence \ interval\\\\\alpha=1-0.74\\\\\alpha=0.26$

Hence, the value of alpha is 0.26, assuming a confidence level of 74%.

To know more about confidence interval click the link given below.

brainly.com/question/26725727

8 0

3 years ago

Ella purchased a game that was on sale for 12% off. The sales tax in her county is 6%. Let y represent the original price of the

Vera_Pavlovna [14]

y: original price (in dollars)

0.12y: amount of discount (in dollars)

sale price: y - 0.12y = 0.88y

sales tax on this sale price: (0.06)(0.88y)

final cost: 0.88y + (0.06)(0.88y) = 0.88y(1+0.06) = 0.9328y

7 0

3 years ago