All categories

2 years ago

X + 8 = 2(0.5x + 4). Help anyone?

Mathematics

2 answers:

mote1985 [20]2 years ago

4 0

I hope this is helpful....

harina [27]2 years ago

3 0

Hope it helps. Life Goes On

You might be interested in

Cuantas galletas marias gamesa son 100g?/How many gamesa marias cookies are 100g?

jok3333 [9.3K]

Answer:i think its 10

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Can someone please help

Ivanshal [37]

Hi! The answer is 3!

5 0

3 years ago

Solve the quadratic function by completing the square. What are the missing pieces in the steps?

Sergeu [11.5K]

Answer:

x = -2; or x = -8

Step-by-step explanation:

Solve the quadratic function by completing the square. What are the missing pieces in the steps? -32=2(x^2+10)

-32+___=2(x2+10x+25)

18=2(x+5)^2

9=(x+5)^2

+-___=x+5

X=-2 or x=___

Solution:

From the first line:

-32+___=2(x2+10x+25)

Also, in the second line:

18=2(x+5)^2

Let the missing piece on line 2 be a, hence:

x² + 10x + 25 = (x + 5)² and -32 + a = 18

a = 18 + 32 = 50

-32 + 50 =2(x²+10x+25)

18 = 2(x+5)²

Dividing through by 2:

18 / 2= [2(x+5)² / 2]

9 = (x + 5)²

Taking square root of both sides:

√9 = √(x + 5)²

± 3 = x+5

Simplifying the equation to get:

3 = x + 5; -3 = x + 5

x = 3 - 5; or x = -3 - 5

x = -2; or x = -8

9 0

3 years ago

Valentina is trying to decide whether to join her school's swim team. During the summer, the team practices 4 days per week. Eac

Aloiza [94]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

parallelogram PQRS has PQ=RS=8 cm and diagonal QS= 10 cm. point F is on RS exactly 5 cm from S. let T be the intersection of PF

Doss [256]

<u>Solution-</u>

Given that,

In the parallelogram PQRS has PQ=RS=8 cm and diagonal QS= 10 cm.

Then considering ΔPQT and ΔSTF,

1- ∠FTS ≅ ∠PTQ ( ∵ These two are vertical angles)

2- ∠TFS ≅ ∠TPQ ( ∵ These two are alternate interior angles)

3- ∠TSF ≅ ∠TQP ( ∵ These two are also alternate interior angles)

<em>If the corresponding angles of two triangles are congruent, then they are said to be similar and the corresponding sides are in proportion.</em>

∴ ΔFTS ∼ ΔPTQ, so corresponding side lengths are in proportion.

$\Rightarrow \frac{PQ}{FS} =\frac{TQ}{TS} =\frac{TP}{TF}$

As QS = TQ + TS = 10 (given)

If TS is x, then TQ will be 10-x. Then putting these values in the equation

$\Rightarrow \frac{PQ}{FS} =\frac{TQ}{TS}$

$\Rightarrow \frac{8}{5} =\frac{10-x}{x}$

$\Rightarrow x=3.85$

∴ So TS = 3.85 cm and TQ is 10-3.85 = 6.15 cm

5 0

4 years ago