All categories

2 years ago

The value of 3 x 10, when x = 2, can be

Mathematics

1 answer:

forsale [732]2 years ago

6 0

Answer:

ujiuhgufxzfjzkgdlhckgfiyditdoydoydktdktdkydjgx

You might be interested in

Please help me with this math question

scZoUnD [109]

Answer:

Step-by-step explanation:

$\bold{METHOD\ 1}\\\\6d=8e\qquad\text{divide both sides by 6}\\\\d=\dfrac{8}{6}e\to d=\dfrac{4}{3}e\\\\\text{Substitute it and}\ f=2e\ \text{to the ratio}\ d:e:f:\\\\\dfrac{4}{3}e:e:2e\qquad\text{cancel}\ e\\\\\dfrac{4}{3}:1:2\qquad\text{multiply by 3}\\\\\huge\boxed{4:3:6}$

$\bold{METHOD\ 2}\\\\6d=8e\qquad\text{divide both sides by 6}\\\\d=\dfrac{8}{6}e\qquad\text{divide both sides by}\ e\neq0\\\\\dfrac{d}{e}=\dfrac{4}{3}\to d:e=4:3\\\\2e=f\qquad\text{divide both sides by 2}\\\\e=\dfrac{f}{2}\to e=\dfrac{1}{2}f\qquad\text{divide both sides by}\ f\neq0\\\\\dfrac{e}{f}=\dfrac{1}{2}\to e:f=1:2\\\\\text{We have}\ d:e=4:3\ \text{and}\ e:f=1:2.$

$\text{We know}\ \dfrac{1}{2}=\dfrac{1\cdot3}{2\cdot3}=\dfrac{3}{6}\\\\\text{threfore}\ e:f=3:6\\\\\text{Now we have}\\\\\left\begin{array}{ccc}d:e=4:3\\e:f=3:6\end{array}\right\}\large{\boxed{d:e:f=4:3:6}}$

6 0

3 years ago

Factorise 5x^2-18x+16=0

Lunna [17]

Answer:

(5x-8)(x-2)

Step-by-step explanation:

or either use quadratic formula

5 0

2 years ago

Complete the steps for x. <br> 5/6x- 1/5x =19 <br> 5/6x- 1/5x =19 <br> ?/30x=19

dybincka [34]

Answer:

x = 30

Step-by-step explanation:

5/6x- 1/5x =19

Get a common denominator of 30

5/6x * 5/5 - 1/5x * 6/6 = 19

25/30x - 6/30x = 19

19/30x = 19

Multiply each side by 30/19

19/30x * 30/19 = 30/19 * 19

x = 30

8 0

2 years ago

Read 2 more answers

Find the distance between (-4, -3) and (2,1)

vlabodo [156]

Answer:

-4,-3 is 4 and 2,1 is 2

Step-by-step explanation:

6 0

2 years ago

Graph the function y less than or equal to x^2-3x-1

il63 [147K]

Answer: y <= x^(2) - 3x - 1

How to: Graph the inequality by finding the boundary line, then shading the appropriate area.

Have a great day and stay safe !

5 0

2 years ago