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2 years ago

What is the answer to this -7= x/4?

Mathematics

2 answers:

murzikaleks [220]2 years ago

7 0

Answer:

x= -28

Step-by-step explanation:

Multiply both sides as in -7 and 4

-7= --- ---> -7 x 4= -28 = x

-28 = x. (Swap Sides) X= -28

Vlada [557]2 years ago

5 0

Answer:

i know the answer

x= -28

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What is the slope of this line? -2x + 3y =-6

valkas [14]

Answer:

Slope: 2/3

Step-by-step explanation:

You have to first write the equation into slope-intercept form...

y = mx + b

So...

-2x + 3y = -6

becomes...

3y = 2x - 6

y = 2/3x - 2

Which means...

2/3 is the slope

Hope this help :)

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1 year ago

Find the surface area of a rectangular prism that is 16 inches long, 12 inches wide, and 5 inches high.

PolarNik [594]

The correct answer is A

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2 years ago

An ice cream store sells 28 flavors of ice cream. Determine the number of 4 dip sundaes.

weeeeeb [17]

Answer:

$20,475\ ways$

Step-by-step explanation:

we know that

<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

$C(n,r)=\frac{n!}{r!(n-r)!}$

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r represents the number of items being chosen at a time.

In this problem

$n=28\\r=4$

substitute

$C(28,4)=\frac{28!}{4!(28-4)!}\\\\C(28,4)=\frac{28!}{4!(24)!}$

simplify

$C(28,4)=\frac{(28)(27)(26)(25)(24!)}{4!(24)!}$

$C(28,4)=\frac{(28)(27)(26)(25)}{(4)(3)(2)(1)}$

$C(28,4)=20,475\ ways$

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2 years ago