3 years ago

In a particular year, the United States had a national debt of 1.1 x 1013 U.S. dollars.

Mathematics

1 answer:

kolezko [41]3 years ago

4 0

The answer is to your question is 100:1

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3x+3=3y<br> 2x-6y=2<br><br> (Solving Systems Of Linear Equations By Elimination)

Sergio [31]

3x+3=3y ⇒ 3y-3x=3 ⇒3(y-x)=3 ⇒ y-x=1
2x-6y=2 ⇒ 2(x-3y)=2 ⇒ x-3y=1

We must to collect two equations.
x's is lost;
y-3y=2
-2y=2
y=-1 ; x-3.(-1)=1 ⇒ x=-2

Answer is (-2,-1)

8 0

3 years ago

Help please!!! can you show me how to do this??

IrinaK [193]

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5 0

3 years ago

I need help with number 18

algol13

Answer:

61.6666666667 =61.67

Step-by-step explanation:

4 0

3 years ago

A hiker at a state park climbs to a ridge 1,220 feet higher than where she left the car. Then she hikes 670 feet down a steep cl

DedPeter [7]

Answer:

549 ft

Step-by-step explanation:

take 670ft away from 1,220 ft ( not all the way sure of I'm right)

6 0

3 years ago

If the perimeter of the top of desk is 54 inches the length of the desk is

allsm [11]

Formula: $2width+2length=perimeter$

$length=15inches$

$width=?$

$Perimeter=54inches$

$2*15=30$ (There are two sides for the length)

$54-30=24$

$24/2=12$ (There are two sides for the width)

The width of the desk is 15 inches

----
-Geekhawk

4 0

3 years ago