Answer:
Let's denote:
Number or gifts cost 20 = x
Number or gifts cost 22.5 = y
Then, we have:
x + y = 10
20x + 22.5y = 217.5
=> 20(10 - y) + 22.5y = 217.5
=> 2.5y = 17.5
=> y = 7 (Number or gifts cost 22.5)
=> x = 10 - 7 = 3 (Number or gifts cost 20)
Hope this helps!
:)
Answer:
he forgot to solve the -6 i hope thats right im srry if it isnt
Step-by-step explanation:
Answer:
44
Step-by-step explanation:
1/2bh, b=8, h=11
1/2*8*11
1/2*88
=44
To find 25x3, you could just add 25 3 times like this 25+25+25. But since 4 quarters equaling 25 cents each is 100 cents, 3 quarters is 75 cents. That being said, 25x3=75
Answer:
look it up
Step-by-step explanation: