Answer:
j = 2/19
Step-by-step explanation:
Step 1: Subtract 7 on both sides
-2/j = -19
Step 2: Multiply <em>j</em> on both sides
-2 = -19j
Step 3: Divide both sides by -19
2/19 = j
If the question is -2/(j + 7) = 12:
Step 1: Multiply both sides by j + 7
-2 = 12(j + 7)
Step 2: Distribute
-2 = 12j + 84
Step 3: Subtract 84 on both sides
-86 = 12j
Step 4: Divide 12 on both sides
j = -43/6 = -7.167
Answer:
14
Step-by-step explanation:
6*4 is 24,
24-10 is 14
Answer:
$204.85
Step-by-step explanation:
Let the two legs be the adjacent and the opposite of the right triangle. To get the third side (the hypotenuse), we will use the pythagoras theorem;
Perimeter of the garden will be the sum of all the three sides.
Perimeter of the garden = 12 + 12 + 16.97
Perimeter of the garden = 40.97 feet
Since 1 foot = $5
40.97 feet = x
Cross multiply
1*x = 5*40.97
x = 204.85
Hence it will cost $204.85 to fence the entire perimeter of the garden
Machine can make 114 copies in 4 minutes and 45 seconds. So first convert 45 seconds into minutes. We will use ratio and proportion for that using 1 minute = 60 seconds. So let say X minutes = 45 seconds.
solve for X as shown
= X
0.75 = X
So 45 seconds =0.75 minutes
So it takes 4 minutes +0.75 minutes = 4.75 minutes for machine to make 114 copies. We have to find copies made in 1 minute. So lets say it makes C copies in 1 minute. Again we will use ratio and proportion
=
Now solve for C as shown
=
24 = C
So machine can make 24 copies in 1 minute. So thats the final answer.
9/10 or 10/9
10/9=1 1/9
1 1/9>9/10
Ten ninths is greater than nine tenths.