3 years ago

What number completes this sentence12/18=x/30

Mathematics

1 answer:

BartSMP [9]3 years ago

5 0

Cross multiplying:-
18*x = 12*30
x = 360 / 18

x = 20 answer

You might be interested in

Consider the inequality -5(x+7) <-10. write an inequalityrepresenting the soulution for x.

Gwar [14]

Answer:

x > -5

Step-by-step explanation:

You multiply both sides by -1

Simplify

Divide both sides by 5

Simplify

Subtract 7 from both sides

Simplify

Please give me BRAINLIEST and THANKS lol <(￣︶￣)>

6 0

3 years ago

8miles in 1 hour write an expression of the total distance

Brilliant_brown [7]

Answer:

f(x)=1x·8= total distance

Step-by-step explanation:

f(x) is a function

1= hour

x= how many hours

8= miles

5 0

3 years ago

Read 2 more answers

Which of the following is an extraneous solution of the square root of -3x-2=x+2

yarga [219]

Answer:

x=-6 is an extraneous solution

Step-by-step explanation:

we have

$\sqrt{-3x-2} =x+2$

squared both sides

$-3x-2=(x+2)^2$

$-3x-2=x^2+4x+4$

$x^2+7x+6=0$

solve the quadratic equation by graphing

The solution is x=-6 and x=-1

see the attached figure

<u><em>Verify each solution</em></u>

substitute the value of x in the original expression

For x=-6

$\sqrt{-3(-6)-2} =-6+2$

$\sqrt{16} =-4$

$4=-4$ ----> is not true

Is an extraneous solution

For x=-1

$\sqrt{-3(-1)-2} =-1+2$

$\sqrt{1} =1$

$1=1$ ----> is true

Is the solution

4 0

3 years ago

Solve the inequality.

zysi [14]

Answer:

?= 2

X=1

Step-by-step explanation:

3(1+1)<9

3×2<9

6<9

Pls mark brainliest.

8 0

1 year ago

Read 2 more answers

Use substitution to solve the linear system of equations.

Ne4ueva [31]

Answer:

Step-by-step explanation: infinitely many solutions (please give brainliest)

6 0

2 years ago