Answer:
<em>10</em>
Step-by-step explanation:
<em>To solve this, we have to do 4 divided by 2/5, because there are stops every 2/5 mile of a 4-mile track.</em>
<em>To make dividing easier, you can write 4 as a fraction, which would be 4/1</em>
<em>Now, divide:</em>
<em>4/1 ÷ 2/5</em>
<em>Remember that when you divide a fraction by another fraction, you can multiply the first fraction by the reciprocal of the second fraction and get the same fraction.</em>
<em>The reciprocal of 2/5 is 5/2.</em>
<em>So 4/1 x 5/2 = 20/2, which can be simplified as 10.</em>
<em>So there are 10 stops. </em>^-^
1. 1/10 (3000) = 3000/10 = 300...so 1/10 of 3000 is 300
300/10 = 30...and 300 is 10 times as much as 30
2. 10 times as much as 8 = (10 x 8) = 80
1/10x = 80
x = 80 * 10 = 800
so 1/10 of 800 is 10 times as much as 8
3. 1/10(50,000) = 50,000/10 = 5000
5000/10 = 500
1/10 of 50,000 is 10 times as much as 500
4. 1/10(40,000) = 40,000/10 = 4,000
4000/10 = 400
1/10 of 40,000 is 10 times as much as 400
5. 1/10 (900) = 900/10 = 90
10x = 90
x = 90/10
x = 9
10 times as much as 9 is 1/10 of 900
6. 1/10 (60,000) = 60,000/10 = 6000
10x = 6000
x = 6000/10
x = 600
10 times as much as 600 is 1/10 of 60,000
7. 70 x 10 = 700
1/10x = 700
x = 700 * 10
x = 7000
10 times as much as 700 is 1/10 of 7000
8. 10 x 2000 = 20,000
1/10x = 20,000
x = 20,000 * 10
x = 200,000
10 times as much as 2000 is 1/10 of 200,000
9. 10 times as much as 2000.....2000 x 10 = 20,000
1/10 of what is 20,000.....1/10x = 20,000....multiply both sides by 10, this eliminates the 1/10 on the left side....resulting in 200,000.
so basically, 10 times as much as 2000 = 20,000 and 1/10 of 200,000 = 20,000
Answer:
x=3,y=-10
Step-by-step explanation:
First, we add 21 to both sides of the first equation
13x=-21-6y
+21 +21
13x+21=-6y Now divide by -1 to make it positive
/-1 /-1 /-1
-13x-21=6y
Now we have to subtract 36 on both sides of the second equation
-8x=36+6y
-36 -36
-8x-36=6y
Since both equations equal 6y we can solve the equation by making them "equal" each other
-13x-21=-8x-36 Add 36 to both sides
+36 +36
-13x+15=-8x Add 13x to both sides
+13x +13x
15=5x Divide by 5
/5 /5
x=3
Now use the x value to solve
13(3)=-21-6y
39=-21-6y Add 21 to both sides
+21 +21
60=-6y
/-6 /-6
y=-10
Hope this helped!
Answer:
Sorry is there any more information i will then change answer
Step-by-step explanation: