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2 years ago

How do you slove 3x+4y=8 in steps

1 answer:

7 0

3x+4y=8
Add -4y to both sides
3x+4y+−4y=8+−4y3x=−4y+8
Then you divide both sides by 3
3x/3=−4y+8/3x=−4/3y+8/3
And your answer is ...
x=−4/3y+8/3

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What value added to x2 + 2x would complete the square

Hoochie [10]

To find the value take the b and divide it by two. then square it. here your b value is 2 so 2/2 is 1. squared is. 1.

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3 years ago

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Show your work to find X

Kamila [148]

Answer:

x = 20

Step-by-step explanation:

(2 + 3x) and 62° are vertically opposite angles and are congruent, so

3x + 2 = 62 ( subtract 2 from both sides )

3x = 60 ( divide both sides by 3 )

x = 20

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3 years ago

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]

Solution-

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)

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

∴ 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

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3 years ago

A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC b

iragen [17]

The student made the mistake in Step 2.

It should be m∠o + m∠p = 180 (Supplementary angles)

If this is corrected, then, since m∠m + m∠n + m∠o = 180 from Step 1,

we have,

m∠m + m∠n + m∠o = m∠o + m∠p which is Step 3.

Cancelling m∠o both sides, we get,

m∠m + m∠n = m∠p which is Step 4.

7 0

3 years ago

-4.36+1.2[2.8 +(-3.51)] what's the answer with solution please Im begging youu

avanturin [10]

Hey there!

-4.36 + 1.2 [2.8 +(-3.51)]

= -4.36 + 1.2(2.8 - 3.51)

= 4.36 1.2(-0.71)

= -4.36 - 0.852

= -5.212

Therefore, your answer is: -5.212

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

5 0

2 years ago

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