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4 years ago

Solve 20x+ 5y = 15 for y.

Mathematics

1 answer:

Nesterboy [21]4 years ago

5 0

20x+ 5y = 15

Move 20x to the other side. Sign changes from +20x to -20x

20x-20x+5y=-20x+15

5y=-20x+15

Divide both sides by 5

5y/5=y ( Cross out 5 and 5, divide by 5, 1*1*y=y)

-20/5=-4x

15/5=3

y=-4x+3 or y=3-4x

Answer: y=-4x+3 or y=3-4x

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36p+153q = ???? HHHHHHAAAAAAALPPPP

Naddik [55]

Answer:

9(4p +17q)

Step-by-step explanation:

9 is a common factor to both terms

9(4p +17q)

6 0

3 years ago

NEED HELP ASAP! 15 points!

sertanlavr [38]

Step-by-step help:

399 - 75 = 324.

Now that we have the bonus out of the equation, the fraction is approximately

324/12.

Divide by 2,

162/6

Divide by 2 again,

81/3.

81 divided by 3 is 27.

So,

The answer is exactly 27.

Hope that helped!

I think maybe the first or second number line.

8 0

3 years ago

P+4<10 The solution of the inequality is

pochemuha

$p < 10-4\\p < 6$

P<6 is the solution

Be reminded <> change direction when you divide or multiply by a negative number.

5 0

1 year ago

Show that the two triangles ABC and DEF are congruent by the HL theorem.

inna [77]

Since hypotenuses and legs have the same length, then both are congruent and thus, triangles ABC and DEF are congruent.

The Hypotenuse-Leg theorem states that two right triangles are congruent if and only if their hypotenuses and any of their corresponding legs are congruent. That is to say:

$\overline {AC} \cong \overline {DF}$ , $\overline{BC} \cong \overline {EF}$

$AC = DF, BC = EF$

$\sqrt{AB^{2}+BC^{2}} = \sqrt{DE^{2}+EF^{2}}$ , $BC = EF$

If we know that $AB = 10$ , $BC = 4$ , $DE = 10$ and $EF = 4$ , then we have the following outcomes:

$\sqrt{10^{2}+4^{2}} = \sqrt{10^{2}+4^{2}}$

$4 = 4$

Since hypotenuses and legs have the same length, then both are congruent and thus, triangles ABC and DEF are congruent.

We kindly invite to check this question on triangles: brainly.com/question/21972776

3 0

3 years ago

Please help!!!! and when you answer please explain how you got it so in the future I can understand it

UNO [17]

Answer:

It does

Step-by-step explanation:

This is because the line has points in which time and distance are connected (Ex. 100 and 2)

Hope this helps! :)

7 0

3 years ago