Hey there!
Step By Step:
Well so we know that 12 is about half of an 25. So what we are gonna do is to buy 3 of 12$ and 2 of 25$.
3x12=36 and 2x25=50.
With adding those two last numbers, you’ll get $86.
Graph would be down below.
Hope it helps :D
Average (mean) = (sum of all the data) / (# of data)
sum of all the data = (average)(# of data)
Thus for 100 students with an average of 93,
sum of all data = (93)(100) = 9300
and for 300 students with an average of 75,
sum of all data = (75)(300) = 22500
Therefore you would expect the overall average to be
(9300 + 22500) / (100 + 300) = 79.5 %
Now if there are x # of advanced students and y # of regular students, then
x + y = 90 (total # of students) and 93x + 75y = 87(x + y) (overall average)
The second equation can be simplified to x - 2y = 0
Subtracting the two equations yields
x = 60 and y = 90
Therefore you would need 60 advanced and 30 regular students.
<h3>
Answer: 1.3 seconds</h3>
Explanation:
Replace h with 0. Solve for t.
It takes about 1.3 seconds for the balloon to hit the ground.
To find the price of something with sales tax, you simply multiply it by 1.(percent as a decimal). The "1" represents the original price, while the decimal afterwards represents the percent of sales tax. In this case, 3% is .03 as a decimal, so we should be multiplying 55 by 1.03.
55
<u>x1.03
</u>56.65
<u>
</u>Using the math above, we can see that the price of the shoes with the sales tax is $56.65.<u>
</u>
1 meter is 100 centimeters
10 millimeters is 1 centimeter
400 millimeters is 40 centimeters
100 + 85 + 40 = 225
225 centimeters