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3 years ago

-2|x|=20 Solve for x

Mathematics

2 answers:

jok3333 [9.3K]3 years ago

7 0

Answer: x=5, -5

Explanation:
-2|x| =20
|x| = 10
x=5 x=-5

Dmitriy789 [7]3 years ago

6 0

Answer:

that is an unknown equation

Step-by-step explanation:

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CAN SOMEONE PLEASE HELP ME FIND THE AREA OF THIS SHAPE AND SHOW WORK 20 POINTS!!!

Effectus [21]

Answer:

10 units

Step-by-step explanation:

Area of smaller ∆ ,

= 1/2 * 2 * 2 = 2 u

Area of larger ∆ ,

= 1/2 * 4 * 4 = 8u

Total area = 8u + 2u = 10 units

3 0

3 years ago

Solve for x:

Sonja [21]

$\frac{2x}{5} + 1 = \frac{1}{15}$

---------------------------------------------------------
Take away 1 from both sides
---------------------------------------------------------
$\frac{2x}{5} = \frac{1}{15} - 1$

---------------------------------------------------------
Evaluate the value on the right
---------------------------------------------------------
$\frac{2x}{5} = - \frac{14}{15}$

----------------------------------------------------------
Multiply by 15 on both side
---------------------------------------------------------
$\frac{2x}{5} \times 15 = - \frac{14}{15} \times 15$

---------------------------------------------------------
Evaluate
---------------------------------------------------------
$6x = -14$

---------------------------------------------------------
Divide by 6 on both sides
---------------------------------------------------------
$x = - \frac{14}{6}$

---------------------------------------------------------
Simplify
---------------------------------------------------------
$x = - \frac{7}{3}$

$Answer \: x = - \frac{14}{6} \ or - \frac{7}{3}$

3 0

3 years ago

I need help with these 2 questions

tensa zangetsu [6.8K]

Number 1 would the last option, but I’m not sure about number 2

7 0

3 years ago

This data gives the average number of hours of exercise each week for different students.

vazorg [7]

Answer:

X X

X X X

X X X X X X

3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0

I believe that this is the answer

7 0

3 years ago

21 pounds of tomatoes cost $31.50. How many pounds of tomatoes can you get for $45?

ololo11 [35]

Answer:

30 pounds

Step-by-step explanation:

create a proportion and cross-multiply to solve

let x = $45 worth of tomatoes, in pounds

21 / 31.5 = x / 45

31.5x = 945

x = 30

3 0

3 years ago