Please help me on number 8.

Answers

Answer 1

Answer: Original price of skate board = $130
25% of its price(Discount)= 25/100*130 =$ 32.50
Price after discount = $130-$32.50 = $97.50

Amount Josie has = $90
Amount Josie needs more = 97.50 - 90 = $7.50

Answer 2

Answer: First, work out the discounted price of the skateboard.

25% = 25
100 - 25 = 75

($130 × 75) ÷ 100 (to get the answer as a percentage) = $97.50.

If Josie has $90, you work out how much more she needs by doing $97.50 - $90, which is $7.50.

The answer is $7.50.

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There are 126 seats in a meeting room.There are 9 seats filling up each row. There are 90 people seated, filling up full rows. How many rows are empty? Answer the question with steps or you will not get brainliest.

Answers

The number of rows kept empty will be 4 in the meeting room.

What is Arithmetic progression?

The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).

The arithmetic progression has wider use in mathematics for example sum of natural numbers.

As per the given,

Number of seats in one row = 9

Total number of seats = 126

Maximum number of possible rows =126/9 = 14 rows

Total number of people seated = 90

Number of rows filled = 90/9 = 10 rows

Empty rows = 14 - 10 = 4 rows.

Hence "In the meeting room, four rows will be left unoccupied".

For more about Arithmetic progression

brainly.com/question/20385181

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Alright. Let us start to solve!

126 seats is the total.

9 seats for each row.

90/9 = 10

10 rows are already occupied.

126/9 = 14

there are 14 rows altogether.

Since 10 are occupied, and there are 14, we subtract.

14-10 = 4

Answer: There are 4 rows empty

What is 82/100 in its simplest form?