Given:
1st purchase: <span>38 bed sheets and 61 towels for $791.50
2nd purchase: </span><span>54 bed sheets and 50 towels for $923
Let x = bed sheets ; y = towels
38x + 61y = 791.50
54x + 50y = 923.00
Find the value of y:
50y = 923.00 - 54x
y = 923/50 - 54x/50
y = 18.46 - 1.08x
Substitute y to find the value of x.
38x + 61y = 791.50
38x + 61(18.46 - 1.08x) = 791.50
38x + 1126.06 - 65.88x = 791.50
38x - 65.88x = 791.50 - 1126.06
- 27.88x = -334.56
x = -334.56/ -27.88
x = 12
Find the value of y using the value of x.
y = 18.46 - (1.08x)
y = 18.46 - (1.08*12)
y = 18.46 - 12.96
y = 5.5
Each bed sheet costs $12 and each towel costs $5.50
To check:
</span>38x + 61y = 791.50
38(12) + 61(5.5) = 791.50
456 + 335.5 = 791.50
791.50 = 791.50
<span>54x + 50y = 923.00</span>
54(12) + 50(5.5) = 923
648 + 275 = 923
923 = 923
Answer:
A. 360 Meters
Step-by-step explanation:
There are 120 seconds in 2 minutes and if a balloon is rising 9 meters every 3 seconds you'll have to take 120 divided by 3 which is 40. You'll then take 40 and times it by 9 which is 360.
The area was originally 3*5, or 15 cm^2.
When the sides were enlarged, they were all multiplied by 3. The new sides are 3*3, or 9, and 5*3, or 15.
The new area is 9*15, or 135 cm^2.
If you divide 135, the new area, by 15, the original area, you get 9. So, the area increased by a factor of 9.
Answer:
I think the table is linear. The total amount after one year is 248 ants.
Step-by-step explanation:
The best choice from the ones viewable in your picture is B) 1.
With that being said, 1 is used to indicate a perfect fit, which there is not one for this plot.
However, 0 would not be correct either, as 0 implies no correlation. We can see from the graph that there is a correlation.
-0.95 would not work either, as the line appears to trend upward; a negative correlation coefficient indicates it trends down.