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4 years ago

6

catering company uses a linear function to determine the total cost of parties. The following table shows the costs for dinner p

arties with varied numbers of guests. What is the cost to cater a dinner party with 90 guests?

2 answers:

irakobra [83]4 years ago

6 0

Answer:

It would be $870 because you have to add 315+555=870

MaRussiya [10]4 years ago

6 0

Answer:

Your answer is B. #795. Hope this helps!

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Price of an article is 400 and sold with discount including 13% vat at 339 find discount rate

zvonat [6]

To add 13% vat we can multiply by (100%+13%) = 113% = 1.13
To remove 13% vat divide by 1.13
339 / 1.13 = 300 the discounted price.
The amount of discount = 400 - 300 = 100
Discount rate = 100 / 400 = 1/4 = 25%

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2 years ago

Three more than the products of a number and 7 is equal to 6

Lemur [1.5K]

Answer:

25

Step-by-step explanation:

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3 years ago

Need an answer for question 7 HURRY PLEASE 20 POINTS

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Answer:

2x^2 = 6x - 5.

-x^2 - 10x = 34.

These have only complex roots/

Step-by-step explanation:

3x^2 - 5x = -8

3x^2 - 5x + 8 = 0

There are complex roots if the discriminant 9b^2 - 4ac) is negative.

Here the discriminant D = (-5)^2 - 4*-5*8 = 25 + 160

This is positive so the roots are real.

2x^2 = 6x - 5

2x^2 - 6x + 5 = 0

D = (-6)^2 - 4*2*5 = 36 - 40 = -4

So this has no real roots only complex ones.

12x = 9x^2 + 4

9x^2 - 12x + 4 = 0

D = (-12)^2 - 4*9 * 4 = 144 - 144 = 0.

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-x^2 - 10x = 34

x^2 + 10x + 34 = 0

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No real roots = only complex roots.

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3 years ago

Consider the line <img src="https://tex.z-dn.net/?f=%20y%3D%5Cfrac%7B2%7D%7B3%7D%20x%2B1%20" id="TexFormula1" title=" y=\frac{2}

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we are given equation of line

$y=\frac{2}{3} x+1$

Equation of perpendicular line:

Firstly , we will find slope of line

$y=\frac{2}{3} x+1$

we can compare it with

y=mx+b

we get

$m=\frac{2}{3}$

we know that

slope of perpendicular line will be -1/m

so, slope is

$\frac{-3}{2}$

It passes through point (-4,5)

so, we can use point slope form of line

$y-5=-\frac{3}{2}(x+4)$

we get

$y=-\frac{3}{2}x-1$ ..........Answer

Equation of parallel line:

Firstly , we will find slope of line

$y=\frac{2}{3} x+1$

we can compare it with

y=mx+b

we get

$m=\frac{2}{3}$

we know that

slope of parallel line always equal

so, slope is

$\frac{2}{3}$

It passes through point (-4,-5)

so, we can use point slope form of line

$y+5=\frac{2}{3}(x+4)$

we get

$y=\frac{2}{3}x-\frac{7}{3}$ ............Answer

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4 years ago

Craig borrows $1000 at 9% simple interest per year. When Craig pays the loan back 11 years later, what is the total amount that

Alenkinab [10]

Total amount: $1990

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3 years ago

Read 2 more answers