Answer:
A
Step-by-step explanation:
Perimeter = the sum of all side lengths
Perimeter =
Perimeter = 15 (in this case)
so...
And we're trying to solve for x.
Step 1. Subtract 6 to both sides
Step 2. Add 3 to both sides
Step 3. Combine like terms
Step 4. Solve for x
The cost of parking is an initial cost plus an hourly cost.
The first hour costs $7.
You need a function for the cost of more than 1 hour,
meaning 2, 3, 4, etc. hours.
Each hour after the first hour costs $5.
1 hour: $7
2 hours: $7 + $5 = 7 + 5 * 1 = 12
3 hours: $7 + $5 + $5 = 7 + 5 * 2 = 17
4 hours: $7 + $5 + $5 + $5 = 7 + 5 * 3 = 22
Notice the pattern above in the middle column.
The number of $5 charges you add is one less than the number of hours.
For 2 hours, you only add one $5 charge.
For 3 hours, you add two $5 charges.
Since the number of hours is x, according to the problem, 1 hour less than the number of hours is x - 1.
The fixed charge is the $7 for the first hour.
Each additional hour is $5, so you multiply 1 less than the number of hours,
x - 1, by 5 and add to 7.
C(x) = 7 + 5(x - 1)
This can be left as it is, or it can be simplified as
C(x) = 7 + 5x - 5
C(x) = 5x + 2
Answer: C(x) = 5x + 2
Check:
For 2 hours: C(2) = 5(2) + 2 = 10 + 2 = 12
For 3 hours: C(3) = 5(3) + 2 = 15 + 2 = 17
For 4 hours: C(3) = 5(4) + 2 = 20 + 2 = 22
Notice that the totals for 2, 3, 4 hours here
are the same as the right column in the table above.
Look at the right of the number you want to round then if its greater than 5 round the number that you originally wanted to round. Round it up or down. In this number, 0 is less than 5 so 6 stays the same. all the numbers after 6 turn into zeroes.
Your answer is: 2,600
Answer:
£ 170 .
Step by step explanation :
Given that the price of a computer was decreased by 20% to £136. And we need to find the Original price before the decrease. So , let the earlier price be x ,
<u>Decrease in 20 % :- </u>
⇒ Decreased price = 20% of x
⇒ Decreased price = 20/100 × x
⇒ Decreased price = x/5
<u>New price :- </u>
⇒ New price = x - x/5
⇒ New price = 5x - x/5
⇒ New price = 4x/5.
But its given £ 136 , So
⇒ 4x/5 = £ 136
⇒ x = £ 136 * 5/4
⇒ x = £ 170
<h3>
<u>Hence</u><u> </u><u>the</u><u> Original</u><u> price</u><u> </u><u>was</u><u> </u><u>£</u><u> </u><u>1</u><u>7</u><u>0</u><u> </u><u>.</u></h3>
Answer:
6am
Step-by-step explanation: