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4 years ago

What is the value of x in the equation 3x – y = 18, when y = 27?

2 answers:

8 0

3x-y=18, substitute y=27 then you get 3x-27=18., add 27 to each side to get x by itself, 3x=45, then divide by 3 and you get x=15

Effectus [21]4 years ago

4 0

3x – y = 18
3x – 27 = 18
3x= 45
x =15

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Answer:

Step-by-step explanation:

tip: when dividing by 8 see if the 3 last digits are able to be divided by it

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3 years ago

What is 402,388 rounded to the nearest thousand

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3 years ago

Calculate the average rate of change for the function f(x)=x^4+3x^3-5x^2+2x-2, from x=-1 to x=1

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$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
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average\ rate\\
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\end{array}\\\\
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6 0

3 years ago

Math pls help!! larger number? smaller number?

Georgia [21]

Answer:

larger number = 35

smaller number = 26

Step-by-step explanation:

let larger number be x

and another ( x-9 )

so, x+x-9=61

2x = 70

x = 35

smaller number = 35 - 9

= 26

5 0

3 years ago

El volumen de un cubo, cuyos lados miden 4,5 cm corresponde a: A- 91 cm2 B- 91,1 cm C- 91 cm3

Leya [2.2K]

Answer:

La respuesta correcta es la opción C: 91 cm³.

Step-by-step explanation:

La fórmula del volumen de un cubo es la siguiente:

$V = a^{3}$

En dónde:

a: es cada lado del cubo = 4,5 cm

Entonces, el volumen del cubo es:

$V = a^{3} = (4,5 cm)^{3} = 91.1 cm^{3} \approx 91 cm^{3}$

Por lo tanto, la respuesta correcta es la opción C: 91 cm³.

Espero que te sea de utilidad!

6 0

3 years ago