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Scilla [17]
3 years ago
12

For the following system, subtract the second equation from the first equation.

Mathematics
1 answer:
schepotkina [342]3 years ago
5 0
Here we multiply the 2nd eqation with -1 and then add both
and answer is
-6y=12
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HELP ME ON THIS PLEASE!!!! SHOW WORK!!!!
Mumz [18]

Answer:

<h2>1. x = 4</h2><h2>2. x = 20</h2>

Step-by-step explanation:

1.

ΔABC and ΔAJK are similar (AA). Therefore the sides are in proportion:

\dfrac{AC}{AJ}=\dfrac{AB}{AK}

We have:

AC = 1 + 4 = 5

AJ = 1

AB = 1 + x

AK = 1

Substitute:

\dfrac{5}{1}=\dfrac{1+x}{1}

5=1+x           <em>subtract 1 from both sides</em>

4=x\to x=4

2.

ΔVUT and ΔVMN are similar (AA). Therefore the sides are in proportion:

\dfrac{VU}{VM}=\dfrac{VT}{VN}

We hve:

VU = x + 8

VM = x

VT = 49

VN = 49 - 14 = 35

Substitute:

\dfrac{x+8}{x}=\dfrac{49}{35}              <em>cross multiply</em>

35(x+8)=49x          <em>use the distributive property a(c + b) = ab + ac</em>

35x+280=49x              <em>subtract 35x from both sides</em>

280=14x         <em>divide both sides by 14</em>

20=x\to x=20

3 0
3 years ago
X2 + y2 − 4x + 12y − 20 = 0
balu736 [363]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Simplify the expression 3(x + 9) by distributing. Which expression is equivalent?
notsponge [240]

3(x+9)

3 multiply both x and 9

3x+27

hope it's helpful ❤❤❤

THANK YOU.❤

8 0
3 years ago
Annie buys a container of ice cream for $5 and some peaches that cost $3 per pound. She buys x pounds of peaches. If y is the to
german
I belive that it is the first one
6 0
3 years ago
Read 2 more answers
I need help on this, please explain
san4es73 [151]

Answer:

The answer would be A

Step-by-step explanation:

When you draw TV with V being the midpoint of SU, you would have two triangles that are congruent on all three sides (SSS). See picture. Hope this helped :)

3 0
3 years ago
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