1) y = 5x + 8
Does the equation represent a direct variation?

Answers

Answer 1

Answer: Yes it is an equation of direct variation since it is of the form y = kx where k is the constant of the variation. Looking at the the equation , we see that the constant of variation is k = 5

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If sales increase by $1500 in a week , do you think profit for the will also increase by about $1500?"

Answers

In general, Profit is the difference of Total Sales and Total Expences.

In formula form we could write it,

Profit = Total Sales - Total Expences.

According to given problem, sales increase by $1500 in a week.

That is some more sales also added to previous sales but still some expences are included in total sales and even in increased sale $1500.

So, in order to get the net profit, we need to subtract all expences (even the original cost in making the product and expences of all servises provided in sales).

Therefore, we could finally say, "if sales increase by $1500 in a week, profit would not increase by about $1500".

Which expression is equal to 3(5x - 6) -2(4x + 5)? A) 7x - 1 B) 9x - 1 C) 9x - 13 D) 7x - 28

Answers

$3(5x - 6) -2(4x + 5) \n \n 15x - 18 - 8x - 10 \ / \ expand \n \n (15x - 8x) - 18 - 10 \ / \ gather \ the \ like \ terms \n \n 7x - 18 - 10 \ / \ simplify \n \n 7x - 28 \ / \ simplify \n \n$

The final result is D) 7x - 28.

3 (5x-6)-2 (4x+5)
1st Distribute the 3 and -2
15x-18-8x-10
Now combine like terms
7x-28 answer D

Estimate the product . Choose a method for 33 x 76=

Answers

What I like to do it just round the numbers. 33 would go to 30. 76 would go to about 80. 30 times 70 equals about 2,100. Your answer should be somewhere around there.

Estimation: 30 x 80 = 2400
Method for Actual answer: (30 x 70) + (3 x 6)
2100 + 18 = 2118

A customer love Jerome 250 as a tip for service that it was 20% of the total food bill

Answers

Basically you can use proportions here. So 20/100 = 250/x. so if $250 was only 20% of the bill then $1250 was the actual bill. You can check this by multiplying 250 by 5 which also equals $1250.

Stephanie had 7/8 pound of bird seed. She 3/8pound to fill a bird feeder. How much bird seed does Stephaine have left