2 years ago

10 POINTS ALL FOR YOU IF YOU ANSWER IT

Mathematics

1 answer:

Gennadij [26K]2 years ago

3 0

Answer:

x is equal to 30

<ABC is equal to 100°

<DBC is equal to 80°

Step-by-step explanation:

3x +10 +2x +20 =180

5x = 180 - 10- 20

5x = 150, divide both sides by 5

x is equal to 30

<ABC = 3x + 10 = 3 × 30 + 10 = 100°

<DBC = 180 - <ABC = 180 - 100 = 80°

You might be interested in

Find the distance between this pair of parallel lines. These equations are in slope- intercept form.

garri49 [273]

Distance is -2 my dude

8 0

3 years ago

What percent of 33 is 96

Nataly_w [17]

<span>96/x=100/33
(96/x)*x=(100/33)*x - we multiply both sides of the equation by x
96=3.0303030303*x - we divide both sides of the equation by (3.0303030303) to get x
96/3.0303030303=x
31.68=x
x=31.68

now we have:
33% of 96=31.68

</span>

3 0

3 years ago

What is the graph of the solution to the following compound inequality?

ohaa [14]

Answer:

Step-by-step explanation:

<, > - open circle

≤, ≥ - solid circle

<, ≤ - draw to the left

>, ≥ - draw to the right

$3-x\geq2\qquad\text{subtract 3 from both sides}\\\\-x\geq-1\qquad\text{change the signs}\\\\\boxed{x\leq1}\\\\4x+2\geq10\qquad\text{subtract 2 from both sides}\\\\4x\geq8\qquad\text{divide both sides by 4}\\\\\boxed{x\geq2}$

3 0

4 years ago

Help me , I need i whole number

ad-work [718]

Answer:

Step-by-step explanation:

4 goes into 64 evenly 16 times

5 0

3 years ago

Fins the value of (15)^3 + (-9)^3 + (-6)^3 , without actually cubing the numbers

Hatshy [7]

a³ + b³ + c³ + 3abc = ( a + b + c)(a² + b² + c² + ab + bc + ca)

if a + b + c = 0. then a³ + b³ + c³ = 3abc

here a + b + c = 15 + (-9) + (-6)

a + b + c = 15 - 15

a + b + c = 0

so a³ + b³ + c³ = 3abc

15³ + (-9)³ + (-6)³ = 3(15)(-9)(-6)

= 2430

so the answer is 2430

8 0

3 years ago