The number of students would not change between before the test and after the test. 3+8 and 4+7 both = 11 so finding out how many students would equal one ratio can then be used to find how many equal 3 and 8.
If 92 students are equal to 4 in the ratio, then 1 in the ratio is worth 23 students. This is important as then when you times 23 by 7 you find out how many students there are in the regular maths class, 161 students. Plussing these two together gives you a total of 253 students.
Using this 253 you can divide it by 11 to find out how much 1 number would be in the ratio, it equals 23. Using this you can then times 23 by both 3 and 8 to find the original class sizes, 3x23 = 69, and 23x8 = 184.
Making the origional class size of the advaced class 69 studnets, and the regular maths class size 184.
Answer:
823
<u>Method 1</u>
Break the three numbers into hundreds, tens and units, then add these separately (starting with the units)
197 = 1 hundred, 9 tens, 7 units
203 = 2 hundreds, 0 tens, 3 units
423 = 4 hundreds, 2 tens, 3 units
Units: 7 + 3 + 3 = 13
Tens: 9 + 2 = 11 tens = 110
Hundreds: 1 + 2 + 4 = 7 hundreds = 700
Add these together: 700 + 110 + 13 = 823
<u>Method 2</u>
First add 203 to 197:
Borrow the 3 from 203 and add it to 197: 197 + 3 = 200
Add the remaining 200: 200 + 200 = 400
Now add 423 to 400: 400 + 423 = 823
⇒ 203 + 197 + 423 = (203 + 197) + 423
= 400 + 423
= 823
Answer:
The saving amount per month is $ 735.8 And
The Expenses amount per month is $2,207.4
Step-by-step explanation:
Given as :
The total per month income = $2,943.20
The saving percentage amount per month = 25% of discretionary money
So , The saving amount per month = 25 % of $2,943.20
= .25 × $2,943.20 = $735.8
The amount which is fixed as each month expenses = total monthly income - total monthly saving
So, Expenses amount per month = $2,943.20 - $735.8
= $2,207.4
Hence The saving amount per month is $ 735.8 And The Expenses amount per month is $2,207.4 Answer
Answer: N = 11
Step-by-step explanation:
Add 8 on both sides
-10n = -110
divide -110 by -10
-23 - (-60) / 69 - 93 = 37 / -24
