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3 years ago

X+y=15-2x+5y=-2 solve your systems of solutions and record your answer as an ordered pair

Mathematics

1 answer:

ipn [44]3 years ago

7 0

Answer:

x = 11 and y = 4

Step-by-step explanation:

Given equations are :

x+y=15 ...(1)

-2x+5y=-2 ...(2)

We need to solve the systems of equations.

Multiply equation (1) by 2.

2x+2y=30 ...(3)

Adding equation (2) and (3).

-2x+5y+2x+2y = -2+30

7y = 28

y = 4

Put the value of y in equation (1).

x+4=15

x = 11

So, the solution of the given equations are x = 11 and y = 4.

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2(x +5)=(x-4) ?<br> Step by step

ExtremeBDS [4]

$\text {Hi There! Let's Solve this Problem!}$

$\text {\underline {The First Step is to Simplify}}$

$\text {2*x=2x}\\\text {2*5=10}$

$\text {Your New Problem Is: 2x+10=x-4}$

$\text {\underline {The Next Step is to Subtract x}}$

$\text {2x+10-x=x-4-x}$

$\text {Your New Problem Is: x+10=-4}$

$\text {\underline {The Final Step is to Subtract 10}}$

$\text {x+10-10 (Crosses Out)}\\\text {-4-10}$

$\text {Your Answer Would Be:}$

$\Huge\boxed {x=-14}$

$\text {Best of Luck!}$

7 0

3 years ago

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what kind of growth model (pattern) is showen in the table x 1, 2, 3, 4, 5 y 5, 25, 125 ,635 ,3,125

Mandarinka [93]

Answer:

x= AP, y= GP

Step-by-step explanation:

x = 1, 2, 3, 4, 5 - difference in terms = 1, this is AP

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3 years ago

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lisabon 2012 [21]

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Step-by-step explanation for shape 1: A = 2(wl + hl + hw) = 2 · (30 · 13 + 13 · 13 + 13 · 30) = 1,898 inches.

Step-by-step explanation for shape 2:

Using the formulas:

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

Solving for A:

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=9·30+13·30+9·30+1

2·﹣94+2·(9·13)2+2·(9·9)2﹣134+2·(13·9)2﹣94≈1010.92435

Step-by-step explanation for total volume: 2908.92435 inches.

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3 years ago

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Answer:

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2 years ago

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3 years ago