1) 2+12a
2) 8-5x
3)12-3z
i think those are the answers :)
Answer:
11 of 20p, 22 of 10p and 33 of 5p
Step-by-step explanation:
Eva has 20p, 10p and 5p coins, total of £6.05 = 605p
Let 20p=x, 10p=y, 5p=z
<u>Then</u>:
- 20x + 10y + 5z = 605
- y : x = 2 : 1 ⇒ x= y/2
- y : z = 2 : 3 ⇒ z= 3y/2
<u>Rewriting the first equation considering next two:</u>
- 10y + 10y + 7.5y = 605
- 27.5y = 605
- y= 605/27.5
- y= 22
- x= y/2 = 22/2 = 11
- z = 3y/2 = 3*11 = 33
<u>Answer:</u> 11 of 20p coins, 22 of 10p coins and 33 of 5p coins
the 6 is the 6 x's that is in the diagram
Answer: I think it would costs $34.50 for 7.5 lbs of walnut
Step-by-step explanation: <u><em>I HOPE THIS HELPS :)</em></u>
Answer:
a (5+3)*20
Step-by-step explanation:
she bought 5 dresses and 3 shoes for 20 dollars each type
so add 5 and 3 then multiply by 20 and you will get the same answer of 80 dollars
