Answer:
An album costs $7 while a single cost $4
Step-by-step explanation:
Let the amount spent on singles be $x while the amount spent on albums be $y
First day, she downloaded 3 albums and 10 singles that cost $61
Hence;
3y + 10x = 61 ••••••••(ii)
Second day, she downloaded 6 albums and 8 singles for $74
8x + 6y = 74 ••••••••(ii)
We now want to use elimination method to solve both equations
Multiply equation i by 2 and ii by i
20x + 6y = 122
8x + 6y = 74
Subtract ii from i now
12x = 48
x = 48/12
x = 4
Recall;
3y + 10x = 61
substitute for x
3y + 10(4) = 61
3y + 40 = 61
3y = 61-40
3y = 21
y = 21/3
y = 7
An album costs $7 while a single cost $4
Hey there, 8 birdies in an 18 hole is 8/18, 8/18 simplified is 4/9, 4/9*45=20. Therefore, the answer is 20 birdies.
You can use guess and check, and first, 2500 * (107.5%)^20 would get us <span>10619.6277506, and then 19 would guess us an answer that is less than 10000, so 20 months = 1 2/3 years.</span>
Answer:
42 weeks
Step-by-step explanation:
12 pounds in 3 weeks
pounds in 1 week
= 12/3
=4
If it was halved:
=4/2
=2 pounds a week
84 pounds divided by 2 pounds a week
=84/2
=42