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Sladkaya [172]
3 years ago
7

A bricklayer needs to order 6300kg of building sand.

Mathematics
1 answer:
worty [1.4K]3 years ago
5 0

There are 1000 grams in a kg, so 6300x1000=6,300,000 grams

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The owner of Original Italian Pizza restaurant chain wants to understand which variable most strongly influences the sales of hi
tino4ka555 [31]

The linear regression model gives mathematical relationship between two variables, the dependent<em> and </em>independent<em> variables</em>. The linear models between the <em>quantity sold and the variables average price, disposable income and monthly advertising are</em> :

  • <em>y = - 4713.46x + 117763</em>
  • <em>y = 2.94x - 58384</em>
  • <em>y = - 1.75x - 32655</em>

To create a linear model using the data given, we use technology such as a excel or a linear regression calculator :

The linear model created using a linear regression calculator between each of the independent variables and quantity sold are :

<u>Average price of deep - dish and Quantity sold :</u>

  • Average price of deep - dish pizza(X)
  • Quantity sold (Y)

y = - 4713.46x + 117763

<u>Disposable income and Quantity sold</u> :

  • Disposable income (X)
  • Quantity sold (Y)

y = 2.94x - 58384

<u>Monthly advertising expenditure and Quantity sold</u> :

  • Monthly advertising cost (X)
  • Quantity sold (Y)

y = - 1.75x - 32655

Learn more :brainly.com/question/18405415

7 0
3 years ago
Please help brainiest
gregori [183]

Answer:

can you take a bigger picture i cant see the words

Step-by-step explanation:

7 0
3 years ago
Sarita showed the steps to solving the equation. 5 (x minus 3) + 7 (x + 4) = 73 Steps Sarita's Solution Sarita's Verification 1
valentinak56 [21]

Answer:

Sarita’s solution is correct. She made an error in her verification. Sarita was supposed to add the 5 and 7 in the first step.

Step-by-step explanation:

Given the following equation:

The steps to solve it are:

5(x-3)+7(x+4)-73

1. Apply the Distributive property:

5x-15+7x+28=73

2. Add the like terms:

12x+13=73

3. Subtract5 13 from both sides of the equation:

12x+13-(13)=73-(13

12x=60

4. Divide both sides of the equation by 12:

12r/12 = 60/12

x = 5

To verify it, let's substitute  into the equation:

5(5-3)+7(5+4)=73

Evaluating, we get:

5(2)+7(9)=73

10+63=73

73=73

Based on this, we can determine that Sarita's solution is correct, but she made an error in her verification (Observe that 5-3 is not equal to -2 )

4 0
3 years ago
Read 2 more answers
A varies directly with B. If A=44 when B=110, find A when B=140
Kay [80]

\frac{44}{a}  =  \frac{110}{140}

a =  \frac{44 \times 140}{110}  = 56

7 0
3 years ago
Which graph shows the solution to this system of inequalities?<br> y &lt; 3x - 4<br> y ≥ x + 1
timama [110]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
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