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3 years ago

Please help me solve this equation and show the work show me how you got the answer

Mathematics

1 answer:

Nesterboy [21]3 years ago

7 0

Answer: k=3

Step-by-step explanation:

To solve for k, you want to isolate k.

$\frac{2}{5} (5k+35)-8=12$ [add both sides by 8]

$\frac{2}{5} (5k+35)=20$ [multiply both sides by 5/2]

$5k+35=50$ [subtract both sides by 35]

$5k=15$ [divide both sides by 5]

$k=3$

Now, we know that k=3.

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X2+5xy+6y2 challenge question

saul85 [17]

Answer:

Step-by-step explanation:

$x^2+5xy+6y^2\\ \\ x^2+2xy+3xy+6y^2\\ \\ x(x+2y)+3y(x+2y)\\ \\ (x+3y)(x+2y)$

6 0

3 years ago

Thee questionn is beloww

Phantasy [73]

Given:

$m\angle ABC=60$

To find:

The $m\angle ADC$ .

Solution:

In circle B, $\angle ABC$ is central angle and $\angle ADC$ is inscribed angle from two points A and C.

According to central angle theorem, central angle is always twice of inscribed angle.

$m\angle ABC=2(m\angle ADC)$ [Central angle theorem]

$60=2(m\angle ADC)$

Divide both sides by 2.

$\dfrac{60}{2}=m\angle ADC$

$30=m\angle ADC$

Therefore, $m\angle ADC=30$ .

6 0

3 years ago

I need help with this problem

Artist 52 [7]

Answer:

2nd answer

Step-by-step explanation:

6 0

3 years ago

255,250,245,... Find the 40th term.

Brut [27]

An=-5n+260
A40=60
So the Awnser is 60

(Hope this helped!!)

5 0

2 years ago

If 120% is £360 what is 100%

AleksAgata [21]

In this question a vital information has been provided. This information can be used for determining the answer to the question that is asked. It is given that 120% of a certain number is 360 pound. The 100% value of the number needs to be determined.
Let us assume the number to be = x
Then
120x/100 = 360
12x/10 = 360
12x = 360 * 10
12x = 3600
x = 3600/12
= 300
Now we can say that the 100% of the number or the actual number is 300 pounds. I hope the problem is clear to you and you can understand the trick involved in the question.

6 0

3 years ago