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3 years ago

Use elimination to solve and match each system of equations to the correct solution.

Mathematics

1 answer:

dalvyx [7]3 years ago

3 0

Answer:

2x-9y=-51

2x-3y=-9

subtract question ii from i we get

-6y = -42

y =7

put value of y in 1

2x - 63 = -51

2x= 8

x=4

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Mathematics algebra sat

Leya [2.2K]

Hey there!

2(p + 1) + 8(p - 1) = 5p

2(p) + 2(1) + 8(p) + 8(-1) = 5p

2p + 2 + 8p - 8 = 5p

10p - 6 = 5p

SUBTRACT 5p to BOTH SIDES

10p - 6 - 5p = 5p - 5p

SIMPLIFY IT!

5p - 6 = 0

ADD 6 to BOTH SIDES

5p - 6 + 6 = 0 + 6

CANCEL out: -6 + 6 because it gives you 0

KEEP: 0 + 6 because it helps solve for the p-value

5p = 0 + 6

5p = 6

DIVIDE 5 to BOTH SIDES

5p/5 = 6/5

CANCEL out: 5/5 because it gives you 1

KEEP: 6/5 because gives you the result of the p-value

SIMPLIFY IT!

p = 6/5

Therefore, your answer is: p = 6/5

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

8 0

3 years ago

Read 2 more answers

Which is the logarithmic form of 4^5 = 1024

leva [86]

Answer:

$Log_41024=5$

Step-by-step explanation:

The change of form formula (exponential to logarithm) is:

$a^x=b\\Log_ab=x$

Looking at the problem given, we can simply write the logarithmic form as:

$4^5=1024\\Log_41024=5$

This is the answer.

3 0

3 years ago

Please answer it for me

kupik [55]

You would have to take 6336 steps because 63360 inches is one mile and that divided by 10 is 6336

7 0

3 years ago

Read 2 more answers

Sam is making trail mix the recipe requires 1 1/2 cups of raisins for 6 cups of peanuts. How many cups will he of raisins will h

LuckyWell [14K]

You will need .5 cups of rasi w

7 0

3 years ago

Building A is 400 feet tall and Building B is 300 feet tall. Johnny is standing in between the two building. The angle of elevat

Free_Kalibri [48]

Answer:

389 feets apart

Step-by-step explanation:

Given that:

Building A

Height = 400feets

Angle of elevation = 70°

Building B:

Height = 300 feets

Angle of elevation = 52°

Distance from the foot of building A to where Jonny is standing = x (see attached picture)

Using trigonometry :

Tanθ = opposite / Adjacent

Tan 70 = 400/ x

2.7474774x = 400

x = 145.58809 feets

Distance from the foot of building B to where Jonny is standing = y (see attached picture)

Using trigonometry :

Tanθ = opposite / Adjacent

Tan 52 = 300/ y

1.2799416y = 300

y = 145.59

y = 234.38568 feets

x + y = distance between the two buildings

(145.58809 + 234.38568) feets

= 379.97377

= 380 feets apart

5 0

3 years ago