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Ksivusya [100]
3 years ago
8

Adrian makes a large pan of brownies. He cuts them into 5 even columns and 4 even rows. How many brownies does he have?

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
3 0

Answer:20

Step-by-step explanation:

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HURRY! (NO LINKS PLEASE)
baherus [9]

Hi!

To solve this, we use the slope equation \frac{y1-y2}{x1-x2}

With numbers in the equation it looks likes this:

\frac{9-6}{1-6} = \frac{3}{-5} or \frac{-3}{5}

<u><em>Therefore your answer is D.</em></u>

<u><em></em></u>

Hope this helps! :D

5 0
2 years ago
Which equation represents a nonproportional relationship?
Montano1993 [528]
C. If you have to add on a number it is nonproportional
5 0
3 years ago
A positive real number is 2 less than another. When 4 times the larger is added to the square of the smaller, the result is 49.
Kobotan [32]

Answer:

The numbers are

-2+3\sqrt{5}   and 3\sqrt{5}

Step-by-step explanation:

Let

x -----> the smaller positive real number

y -----> the larger positive real number

we know that

A positive real number is 2 less than another

so

x=y-2

y=x+2 ----> equation A

When 4 times the larger is added to the square of the smaller, the result is 49

so

4y+x^2=49 ----> equation B

substitute equation A in equation B

4(x+2)+x^2=49

solve for x

x^2+4x-41=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^2+4x-41=0

so

a=1\\b=4\\c=-41

substitute in the formula

x=\frac{-4\pm\sqrt{4^{2}-4(1)(-41)}} {2(1)}

x=\frac{-4\pm\sqrt{180}} {2}

x=\frac{-4\pm6\sqrt{5}} {2}

x=-2\pm3\sqrt{5}

so

The positive real number is

x=-2+3\sqrt{5}

Find the value of y

y=x+2

y=-2+3\sqrt{5}+2

y=3\sqrt{5}

6 0
4 years ago
Solve for n: 21k – 3n + 9p &gt; 3p + 12.
Katyanochek1 [597]
21k - 3n + 9p > 3p + 12....for n
-3n > 3p + 12 - 9p - 21k
n < (3p + 12 - 9p - 21k) / -3
n < -p - 4 + 3p + 7k
n < 2p - 4 + 7k <===
6 0
3 years ago
Do 4x and 15 + x have the same value when x is 5? How do you know?
alexandr402 [8]

Answer:

yes

Step-by-step explanation:

If x = 5,

4x=4*5=20

15+x=15+5=20

They're both the same.

4 0
3 years ago
Read 2 more answers
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