10. 4:5....added = 9
4/9 (1800) = 7200/9 = 800 (red)
5/9 (1800) = 9000/9 = 1000 (green)
there were (1000 - 800) = 200 less red ones then green ones.
11. 7/4 = 21/r
cross multiply
(7)(r) = (4)(21)
7r = 84
r = 84/7
r = 12....Rod has 12 stickers
12. 14/4 = 3.5 eggs per cup
for 16 cups...16 * 3.5 = 56 eggs
Answer:
30/100 *200/1= 6000/100=60
RU middle line of the trapezoid, so
Answer: VW=98
Answer: Multiply (60 − 2x) and (2 + 0.25x) to create the equation y = -0.5x2 + 11x + 120
We know that David wants to increase the price per cup to increase his revenue. He found out that for every $0.25 grows( increase), x, in the price for each cup.
In the event of a price increase, 2 cups remain unsold, and doubling the cups is still not sold. Then the numbers are sold (60-2x). Depending on the choice:
Revenue= (60 -2x)(2 +0.25x)
60·2 +60·0.25x -2x·2 -2x·0.25x
= -0.5x² +11x +120
Answer:
The answers would be :
a) -78/48
b)104/63
Step-by-step explanation:
Hope it was helpful.
Good luck ^.^
P.s = I have attached a pic of my workings as u asked , Hope u can read them :D
