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3 years ago

6

Please help me!!! Select all of the equations for which the solution is 20. A) n-4 B) 10n=20 C) n/5=4 D)7+n=13 Please wander imm

ediately!!!

1 answer:

Cerrena [4.2K]3 years ago

8 0

I'm guessing it is C because after you solve for n (you need to multiply the five over to isolate n), you get 20.

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KATRIN_1 [288]

Answer:

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<u>Pre-Algebra</u>

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Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

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Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

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$\displaystyle f(x) = \left \{ {{2x^2 \ if \ x < 2} \atop {x + k \ if \ x \geq 2}} \right.$

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3 years ago

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Will name the brainliest

Margaret [11]

Answer:

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Step-by-step explanation:

Opposite Angle A is side BC, of length 13. The length of the hypotenuse is 85. The sine function is defined as the ratio opp/hyp. In this problem that ratio is

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3 years ago

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Darya [45]

Answer:

$w = 9 \text{ inches}\\l = 13\text{ inches}\\h = 3\text{ inches}$

Step-by-step explanation:

We are given the following in the question:

Volume of cake = 351 cubic inches

Let x inches be the width of cake.

Width of cake, w =

$x\text{ inches}$

Then, length of cake,l =

$(x + 4)\text{ inches}$

Height of cake,h =

$\dfrac{x}{3}\text{ inches}$

Volume of cake = Volume of cuboid

$V = lwh$

Putting values, we get:

$351 = x(x+4)(\dfrac{x}{3})\\\\1053 = x^3 + 4x\\x^3+4x^2-1053= 0\\\\\text{For x = 9}\\(9)^3+4(9)^2-1053= 0$

Thus, dimensions of cake are:

$w = 9 \text{ inches}\\l = 13\text{ inches}\\h = 3\text{ inches}$

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3 years ago

in the year 2006 there were 163,476 wildfires in a county. This was 12520 less than four times the number of wildfires in the ye

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x= wildfires in 2003

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3 years ago

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slega [8]

Answer:

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Step-by-step explanation:

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Hope this helps!!

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3 years ago