Algebra 2 Summer Homework!?
I have summer homework and I cant write an equation for this problem, I do know the answer though.
Mrs. Chin bought some $0.20 stamps and an equal number of $0.32 stamps. She paid a total of $5.20 for all of the stamps. How many of each type of stamp did Mrs. Chin buy?
Top 4 Answers
Favorite Answer
Hi!
You have to think of the number of 20-cent stamps as X and the number of 32-cent stamps as Y.
However, if she bought an equal number of stamps, then you know that y=x.
So:
20x + 32y = 520
insert y=x:
20x + 32 x = 520
then solve for x:
52x = 520
x =10
and if you want to verify to make sure:
10*0.20 + 10*0.32
=2+3.2=$5.20
good luck!
1
Let a be the number of $0.20 stamps.
Then a is also the number of $0.32 stamps.
Then:
20a + 32a = 520
(20 + 32)a = 520
52a = 520
Divide by 52:
a = 10.
She bought 10 of each.
0
4 years ago
a million) 16x^2 shown by squaring 4 is valuable sixteen because of the fact (-4)(-4)=sixteen and x*x= x^2 2) 9y^6 / 25x^8 this one be valuable to undergo in concepts that as quickly as you sq. you’re doing (y^3)*(y^3) and you upload the exponents to get y^6 3) 320y^2 observe y^0 is in simple terms a million 4) 9 / x^4 while dividing subtract the exponents and because it incredibly is -4 it is going on the denominator 5) -27x^3 / sixteen 6) 64x^9/y^12 a million) 8y^2 – y +4 you could in simple terms combine y’s that have a similar exponent so it incredibly is y^2 + 7y^2 and 3y – 4y and -7 + 11. (contained close to addition) 2) 3x^3 + 7x^2 + 2 (equivalent to addition) 3) 9x^2 – 30x +25 (in multiplication you could combine) 4) y^3 +y^2 – y – a million 5) -12a^3b + 15a^2b^2 – 9ab^3 permit me understand in case you do no longer comprehend any of those and stable success ! 😀
0
Since you state “I do know the answer…”,
therefore: What’s your question?
0
