Earth is 1 A.U. from the sun. Scientific Notation: 4.600 x 107 km(3.075 x 10-1 A.U.)
<span>Multiply
the 1st equation by 5 and multiply the 2nd equation by 2. This will
eliminate the x's when you add the two new equations together.
</span>
<span>A) −2x+3y=8
B) 5x+4y=10
So we multiply A) by 5 and B) by 2
</span><span>A) −10x+15y=40
B) 10x+8y=20
</span>
Adding the equations:
23y = 60
y =
<span>
<span>
<span>
2.6086956522
</span>
</span>
</span>
Answer:
you did it wrong you have to subtract X from 8900.
First you want to subtract 390 from 8900 and that equals
<h2>8510</h2>
21Answer:
Step-by-step explanation:
The answer to this question would be: 750ft
In this question, you are given the rectangle perimeter (2,000 ft) and the ratio of rectangle length:width (3:1). The equation of this question should be:
3*rectangle width = 1 *rectangle length
rectangle width = 1/3 rectangle length
rectangle perimeter = 2,000ft
Then using the rectangle formula, you will be able to find the length. It would be:
rectangle perimeter = 2* (length+width)
2,000ft /2 = 1/3 length + length
1 1/3 length= 1,000ft
length = 1,000ft /4 *3= 750ft