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3 years ago

Please help me with this question :)

Mathematics

1 answer:

just olya [345]3 years ago

8 0

Answer:

3rd option.

Step-by-step explanation:

$\frac{2|k|}{5}$ = 4

move 5 to the other side of the equation.

2|k| = 5(4)

2|k| = 20

move 2 to the other side of the equation.

|k| = $\frac{20}{2}$

k = 10

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Step-by-step explanation:

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3 years ago

2x=12 show how you got the answer

skelet666 [1.2K]

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

1. An object is accelerated at a rate of 5 m/s²? Find the mass of the object if the force exerted on it is 4 x 10⁵dynes. (Note:

torisob [31]

Step-by-step explanation:

$\begin{gathered}\frak \red{Given}\:\begin{cases} \:\quad\sf Acceleration \:of \ \: a\:body\:,\:a\:=\:\pmb{\frak{5\:m/s^2\:}}\:\\ \:\quad\sf Force \:Exerted\:on\:a\:body\:,\:F\:=\:\pmb{\frak{\:4\times 10^5\: dynes\:}}\:\end{cases}\\\\\end{gathered}$

The mass of a body ?

⠀⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━⠀

We're Provided with the , Acceleration (a) , and Force Exerted (F) on a body and , we'll find Mass (m) of the object using the <u>relation</u>

between <u>Force , Mass & Acceleration </u> and, that is :

$\underline {\pmb{\sf \: F\:=\:m\:\times \:a \:}}$

$\\ \twoheadrightarrow \sf F \:=\:m\:\times \:a$

$: \rightarrow \sf 4 \:\times 10^5 \:=\:m\:\times \:5\:$

$\\ \\ \\ \\\twoheadrightarrow \sf 4 \:=\:m\:\times \:5\:\:\Bigg\lgroup \:1 \:N\:=\:1\:\times 10^5\:dynes\:\Bigg\rgroup\\$

$\\ \twoheadrightarrow \sf 4 \: \:=\:m\:\times \:5\:\\\\\\$

$\twoheadrightarrow \sf 5m\:=\:4\:\\$

$\twoheadrightarrow \sf m \cancel{\dfrac{4}{5}}\\\\$

$\ \twoheadrightarrow \pmb {\underline {\boxed {\purple {\:\frak{ \:m\:\:=\:0.8\:kg\:}}}}}\:\bigstar \: \\$

$\begin{gathered}\therefore \:\underline {\sf \: Hence,\:Mass\:of\:a\:body\:is\:\pmb{\sf 0.8\:kg\:}\:.}\:\\\\\end{gathered}$

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2 years ago

The total cost for 25 camp counselors

max2010maxim [7]

Answer:

$187.50 for shirts + The price for the hats.

Step-by-step explanation:

7.50 x 25 =the price for the shirts and 5 x K= the price for hats

K= how many camp counselors need hats.

in all add 187.50 and the price for the hats.

4 0

2 years ago

Please help me with this question :)​

Please help me with this question :)