# IGCSE MATHS

posted by .

A firm selling CDs finds that the number sold (N thousand) is related to the price (£P) by the formula 6P + N = 90.
(1) Draw the graph of N against P for 0 < N < 90 (the vertical axis should be the P axis,
and the horizontal axis should be the N axis).
(2) Use your graph to find the price when 30 000 CDs are sold.
(3) Use your graph to find the number sold if the price of a CD is set at £8.
(4) Use your graph to find the price if 90 000 CDs are sold. Is this a sensible value?

• IGCSE MATHS -

I'm not a math teacher by any means, but have you actually read what you posted?

This assignment involves drawing a graph ... which cannot be done on this website. Sorry.

## Similar Questions

1. ### algebra

At a certain real estate firm,realtors selling homes receive a commission of 7% for the first 140,000 of the selling price, and 5% for any amount exceeding 140,000. A realtor for the firm received 11,350 for selling a house. What was …
2. ### algebra

At a certain real estate firm,realtors selling homes receive a commission of 7% for the first 140,000 of the selling price, and 5% for any amount exceeding 140,000. A realtor for the firm received 11,350 for selling a house. What was …
3. ### math

for every 8cds sold, there were 12 dvds sold. a combined total of 70 cds and dvds were sold. how many cds were sold that day?
4. ### economics

a firm is planning to manufacture a new product. the sales department estimates the quanity that can be sold depends on the selling price. as the selling price is increased, the quantity that can be sold decreases. they estimate: P=\$35-0.02Q …
5. ### economics

a firm is planning to manufacture a new product. the sales department estimates the quanity that can be sold depends on the selling price. as the selling price is increased, the quantity that can be sold decreases. they estimate: P=\$35-0.02Q …
6. ### Statistics

The following data represent the number of flash drives sold per day at a local computer shop and their prices. Price (x) Units Sold (y) \$34 3 36 4 32 6 35 5 30 9 38 2 40 1 a. Perform an F test and determine if the price and the number …
7. ### Algebra

Natalie earns \$2.50 for each CD she sells and \$3.50 for each DVD she sells. Natalie sold 45 DVDs last year. She earned a total of \$780 last year selling CDs and DVDs. Write an equation that can be used to determine the number of CDs …
8. ### Algebra

Natalie earns \$2.50 for each CD she sells and \$3.50 for each DVD she sells. Natalie sold 45 DVDs last year. She earned a total of \$780 last year selling CDs and DVDs. Write an equation that can be used to determine the number of CDs …
9. ### Mathematics

A company sold garden hoses at a reduced price of \$6.52 and took an end-of-season markdown of \$10.43. What was the original selling price of each hose?
10. ### economics

6)Assume the graph below represents the market demand for a patented prescription drug together with the firm-level marginal cost and average cost functions for producing the drug. Assume these cost curves do not reflect R&D costs …

More Similar Questions